CN211126177U - Stack connector and electronic equipment - Google Patents

Abstract

The stacked connector comprises at least two ports, wherein the at least two ports are stacked with a circuit board, each port comprises a set of contacts or at least two sets of contacts, the contacts are first contacts when the ports comprise a set of contacts, the contacts are respectively a set of first contacts and at least one set of second contacts when the ports comprise at least two sets of contacts, and the second contacts are positioned on one side, facing a first direction, of the first contacts. The circuit board, the first port and the second port are sequentially overlapped along a second direction, in a straight line along the second direction, a straight line where a first contact of the second port is located on one side, facing the first direction, of a straight line where the first contact of the first port is located, all contacts of the second port are adjusted along the first direction, the first direction is an inserting direction of the ports, the second direction is perpendicular to the first direction, and the second direction is intersected with a plane where the circuit board is located.

Description

Stack connector and electronic equipment

Technical Field

The application relates to the technical field of communication product accessories, in particular to a stacking connector and electronic equipment.

Background

At present, in an electronic device system for communications, an interconnection system in which a board based on a circuit board and an optical module are combined is a very common interconnection architecture, and as a connection bridge between the board and the optical module, a connector is a very critical architecture-level component, which can ensure signal integrity of an optical-electrical/electrical-optical conversion link in a high-speed link, so that no matter short-distance inter-frame cluster interconnection or long-distance metropolitan area network construction, there is a strong demand for the connector, as shown in fig. 1, a typical application scenario of an IO connector in the high-speed link.

With the continuous and rapid development of the current high-speed communication field, the requirement for data transmission capability is continuously increasing. In accordance with the ieee802.3bs 400GbE specification, the industry is actively developing the multilateral protocol (MSA) of new high density miniaturized modules such as QSFP-DD and OSFP, all of which support 8 × 56Gbps applications. In the OIF-CEI-4.0 standard, a recommended channel reference model is given for the 56GPAM4 Short-range interface (VSR), requiring that the connector section loss not exceed 1.2dB @14.5GHz for a signal rate of 29 Gbps.

The stackable connector refers to a connector including at least two stacked ports, and a port of the two connectors that is farther from the circuit board requires a longer routing path and causes a larger loss, while the connector requires a smaller loss in order to improve data transmission capability.

SUMMERY OF THE UTILITY MODEL

The application provides a heap connector and electronic equipment to reduce the insertion loss of heap connector, improve the transmission ability of data.

In a first aspect, the present application provides a stacked connector, which includes at least two ports, where the at least two ports are stacked on a circuit board, each port includes a set of contacts or at least two sets of contacts, where when the port includes a set of contacts, the contacts are first contacts, and when the port includes at least two sets of contacts, the at least two sets of contacts are respectively a set of first contacts and at least one set of second contacts, where the second contacts are located on a side of the first contacts facing a first direction, i.e., when a connector is inserted into the port, the connector first passes through the first contacts and then passes through the second contacts. The at least two ports include a first port and at least a second port, the first port is adjacent to the circuit board, the first port and the second port are sequentially stacked along a second direction, the contact of the second port is farther from the circuit board, in a straight line along the second direction, the straight line of the first contact of the second port is located at one side of the straight line of the first contact of the first port, which faces to the first direction, and further, when the port comprises at least two groups of contacts, it can be determined that the straight line on which the second contact of the second port is located on one side of the straight line on which the second contact of the first port is located toward the first direction, all the contacts of the second port are adjusted along the first direction, so that the distance between the contacts of the second port and the circuit board can be reduced, the insertion loss generated by the stacking connector is reduced, and the data transmission capability is improved. In the technical scheme, the first direction is the inserting direction of the port, the second direction is perpendicular to the first direction, and the second direction is intersected with the plane where the circuit board is located.

The stackable connector also includes a housing having an insertion opening in one-to-one correspondence with the ports for allowing the plug members to be connected to the ports through the insertion opening. The shell is provided with a step structure, the step structure of the shell is matched with the port of the stacking connector, and the insertion port of the second port is positioned on one side of the insertion port of the first port towards the first direction, so that the size of the stacking connector is reduced, and the integration level of the electronic equipment is improved.

When the housing is specifically arranged, along the first direction, the distance between the insertion port of the first port and the first contact of the first port is the same as the distance between the insertion port of the second port and the first contact of the second port. In the scheme, the sizes of the insertion holes of different ports of the stacked connector are consistent, and the standardization of the plug connectors is facilitated.

When the stackable connector comprises at least three ports, the at least three ports comprise a first port and at least two second ports, the larger the distance between the second port and the first port along the second direction is, and the larger the distance between the straight line where the first contact of the second port is located and the straight line where the first contact of the first port is located along the second direction is, the larger the distance between the straight line where the first contact of the second port is located and the straight line where the first contact of the first port is located along the first direction is. In the scheme, the first contact of the second port and the first contact of the first port are distributed along the first direction in sequence, so that the distance between the contact of each port and the electric connection point is reduced as much as possible, and the insertion loss of the stacking connector is reduced.

When the contacts of each port are specifically arranged, in the straight lines along the second direction, the distance between the straight lines where the first contacts of the adjacent ports are located is not less than 5 mm. Therefore, the length of a connecting line between the first contact of the port and the electric connecting point can be effectively reduced, and the insertion loss of the stacking connector is reduced.

When each port is specifically arranged, an electric connection point can be arranged between the contact of the port and the circuit board, and in the straight line along the second direction, the straight line where the electric connection point of the second port is located on one side, facing the first direction, of the straight line where the contact of the second port is located, so that a connecting line between the contact and the electric connection point does not need to be wound.

When the connecting lines between the contacts of the respective ports and the electrical connection points are specifically provided, the connecting lines may have right-angled corners, and may also have chamfered corners, and when the connecting lines between the contacts of the ports and the electrical connection points have chamfered corners, the chamfered corners can reduce the length of the connecting lines compared with the right-angled corners to reduce the insertion loss of the stackable connector.

When the contacts are specifically arranged, the first port comprises a plurality of contacts, the second port also comprises a plurality of contacts, and the arrangement mode of the plurality of contacts of the first port is the same as that of the plurality of contacts of the second port. It is advantageous to standardize the stackable connector and the connector connected thereto.

In a second aspect, the present application further provides an electronic device, which includes the stackable connector in any of the above technical solutions, so that the stackable connector has a smaller insertion loss, and data transmission capability and electrical performance of the electronic device are improved.

Drawings

Fig. 1 is a schematic diagram of a single board with a stackable connector;

FIG. 2 is a cross-sectional view of a stackable connector of the prior art;

FIG. 3 is a schematic diagram of a stackable connector according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of a stackable connector of the present application;

FIG. 5 is a cross-sectional view of a stackable connector of the present application;

FIG. 6 is a comparison of insertion loss of the stackable connectors of the present application and the prior art stackable connectors;

FIG. 7 is a schematic cross-sectional view of a stackable connector of the embodiment of the present application;

FIG. 8 is a schematic cross-sectional view of a stackable connector of the embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a stackable connector of the embodiment of the present application;

FIG. 10 is a schematic cross-sectional view of a stackable connector of the embodiment of the present application;

fig. 11 is a schematic cross-sectional view of a stackable connector of the prior art;

FIG. 12a is a schematic diagram of an arrangement of contacts of a first port according to an embodiment of the present disclosure;

fig. 12b is a schematic diagram illustrating an arrangement of contacts of the second port in the embodiment of the present application.

Reference numerals:

1-a single plate structure; 11-a circuit board;

12-a chip; 13-a heat sink;

14-stackable connectors; 141-port;

1411-a first port; 1412-a second port;

1413-contacts; 14131 — a first contact;

14132-a second contact; 1414-electrical connection points;

142-a housing; 1421-insert port;

143-connecting lines; 1431-right angle corner;

1432-chamfer corners; 2-plug connector.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.

The stacked connector provided by the embodiment of the application can be applied to electronic equipment, particularly signal connection positions among various components in various electronic equipment, short-distance frame-to-frame cluster interconnection and long-distance metropolitan area network construction, and can be used in the technical scheme of the application. Taking a relatively complete electronic device as an example, the electronic device includes a backplane and a plurality of single boards, modules, chips, and the like, and connectors between the single boards, connectors between the modules, connectors between the chips and the single boards, and connectors between the single boards and the like can all use the stacked connector provided in the technical solution of the present application.

As shown in fig. 1, a single board structure 1 with a stackable connector is a typical application structure of the stackable connector 14, and the single board structure 1 includes a chip 12 disposed on a circuit board 11 and a heat sink 13 for dissipating heat of the chip 12. The single board structure 1 can be connected to other electrical structures using the stackable connectors 14 connected to the circuit board 11 to achieve signal communication.

Referring to fig. 2, which shows a cross-sectional structure of a stacking connector in the prior art, the stacking connector 14 includes two stacked ports 141, a first port 1411 and a second port 1412 in sequence along a direction away from the circuit board 11, and contacts 1413 of the two ports 141 are disposed almost flush along a direction perpendicular to the insertion direction (the second direction Y in fig. 2). As shown in fig. 2, in the prior art, the port 141 is connected to the circuit board 11 through the electrical connection point 1414, the distance between the contact 1413 of the second port 1412 and the corresponding electrical connection point 1414 is relatively long, and the path of the connection line 143 between the contact 1413 and the electrical connection point 1414 is relatively long, which may cause a relatively large insertion loss.

Based on the above technical problem, the present application adjusts the contact 1413 of the second port 1412 of the stackable connector 14 along the insertion direction (the first direction X in fig. 2) by adjusting the position of the contact 1413 of the second port 1412 along the insertion direction, so as to shorten the distance between the contact 1413 of the port 141 and the electrical connection point 1414, thereby shortening the path length of the connection wire 143 of the connector and reducing the insertion loss. The specific structure and configuration of the stackable connector 14 and the electronic device provided by the present application will be described in detail below with reference to the accompanying drawings and examples.

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of this application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise. In the following embodiments, the terms "circumferential direction" and "axial direction" are measured with respect to a screw, the rotation direction of which is the circumferential direction, and the direction perpendicular to the circumferential direction is the axial direction.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

As shown in fig. 3, which is a schematic structural diagram of the stackable connector 14 in the embodiment of the present application, the first direction X referred to in the embodiment of the present application refers to the insertion direction of the port 141, the second direction Y is perpendicular to the first direction X, and the second direction Y intersects with the plane of the circuit board 11, i.e. the second direction Y is not located on the plane of the circuit board 11. Further, the drawing direction of the port 141 is opposite to the first direction X.

Referring to fig. 3 and 4, fig. 4 is a schematic cross-sectional view of a stackable connector 14 in an embodiment of the present application, the stackable connector 14 includes two stacked ports 141, the stackable connector 14 is fixedly connected to a circuit board 11, each port 141 includes a set of contacts 1413, the contacts 1413 are first contacts 14131, the two ports 141 include a first port 1411 and a second port 1412, the two ports 141 are stacked and fixed to the circuit board 11 in a second direction, i.e., the second port 1412, the first port 1411 and the circuit board 11 are stacked in sequence, the two ports 141 include a first port 1411 adjacent to the circuit board 11 and a second port 1412 are located on a side of the first port 1412 1 away from the circuit board 11, the first contact 14131 of the second port 14131 is located on a side of the first contact 14131 of the first port 1411 facing the first direction X, and referring to fig. 4, in a straight line 1412 extending in the second direction Y, a straight line 14178 where the first contact 31 of the second port 1412 is located on a straight line L₁The straight line of the first contact 14131 of the first port 1411 is the straight line L₂Straight line L₁At line L₂Toward one side of the first direction. In this aspect, the second contact 14132 of the second port 1412 is located on a side of the second contact 14132 of the first port 1411 facing the first direction X. The stackable connector 14 in the embodiment of the present application can shorten the path between the contact 1413 of the port 141 located at the side far away from the circuit board 11 and the electrical connection point 1414, thereby shortening the length of the connection line 143 between the contact 1413 and the electrical connection point 1414, so as to reduce the insertion loss of the stackable connector 14 and improve the data transmission capability. In addition, the scheme canMeanwhile, the proportion of the connector in the length of the link is reduced, because the connector between the connected chips and the circuit board 11 bring loss, but the impedance of the connector and the circuit board is different, the problem of typical impedance discontinuity between the chips can be caused, the scheme reduces the length of the wire between the contact 1413 and the electrical connection point 1414, and can reduce the damage of the connector as a typical impedance discontinuity structure to the electrical performance of the link, thereby improving the electrical performance of the electronic device applying the stackable connector 14.

Referring to fig. 5, fig. 5 shows a schematic cross-sectional structure of the stackable connector 14 in an embodiment of the present invention, in another embodiment of the present invention, each of the ports 141 includes at least two sets of contacts 1413, respectively a set of first contacts 14131 and at least one set of second contacts 14132, wherein the second contacts 14132 are located on a side of the first contacts 14131 facing the first direction X, i.e., when the connector 2 is inserted into the port 141, the connector 2 passes through the first contacts 14131 and then passes through the second contacts 14132, fig. 5 illustrates that the port includes two sets of contacts 1413, the two ports 141 include a first port 1411 and a second port 1412, the two ports 141 are stacked and fixed on the circuit board 11 along the second direction, i.e., the second port 1412, the first port 1411 and the first port 1411 are stacked sequentially with the circuit board 11, wherein the first port 1411 is adjacent to the first port 14111, the second port 1412 is located on a side of the first port 1411 facing the first direction X, and the second port 1412 is located on a side of the first contact 31 facing the first direction X, and the second contact 14131 extends along a straight line L of the first port 1415, which is extended along a straight line of the straight line 14126 of the first port 14131₁The straight line of the first contact 14131 of the first port 1411 is the straight line L₂Straight line L₁At line L₂Toward one side of the first direction. In this aspect, the second contact 14132 of the second port 1412 is located on a side of the second contact 14132 of the first port 1411 facing the first direction X. The stackable connector 14 of the embodiment of the present application can shorten the path between the contact 1413 of the port 141 on the side away from the circuit board 11 and the electrical connection point 1414, thereby shortening the length of the connection line 143 between the contact 1413 and the electrical connection point 1414The insertion loss of the stackable connector 14 is reduced and the transmission capability of data is improved. In addition, the electrical performance penalty of the connector as a typical impedance discontinuity on the link may be reduced, thereby improving the electrical performance of the electronic device to which the stackable connector 14 is applied.

It is noted that, as shown in fig. 4 and 5, each set of contacts 1413 includes two rows of contacts 1413, the two rows of contacts 1413 are disposed oppositely along the second direction Y, and when the plug connector 2 is inserted into the stackable connector 14, the two rows of contacts 1413 are respectively disposed on two sides of the plug connector 2 along the second direction Y.

As described above, the stackable connector 14 of the embodiment of the present application and the stackable connector 14 of the prior art are analyzed by a comparison test, and fig. 6 is a graph showing the analysis result of the comparison test, wherein the black line shows the insertion loss curve generated between the contact 1413 of the second port 1412 and the electrical connection point 1414 in the embodiment of the present application; the gray lines show the insertion loss curves generated between the contact 1413 and the electrical connection point 1414 of the second port 1412 in the prior art, and it can be seen that the insertion loss generated by the second port 1412 in the embodiment of the present application is smaller than that generated by the second port 1412 in the prior art at different frequencies.

With continued reference to fig. 3 and 5, the stackable connector 14 may have a housing 142 with an insertion port 1421 corresponding to each port 141 of the housing 142. In the embodiment shown in fig. 5, the stackable connector 14 provided by the present application may have only the first contact 14131 of the second port 1412 located on one side of the first contact 14131 of the first port 1411 facing the first direction X, and in the housing 142 of the stackable connector 14, the insertion port 1421 of the first port 1411 and the insertion port 1421 of the second port 1412 are located on the same plane.

Referring to fig. 3 and 7, fig. 7 is another structural schematic diagram of the stackable connector 14 in the embodiment of the present application, in which the housing 142 of the stackable connector 14 has a stepped structure, and the stepped structure is matched with the positions of the first contacts 14131 of the ports 141, that is, the insertion port 1421 of the second port 1412 is located on one side of the insertion port 1421 of the first port 1411 facing the first direction. This scheme can reduce stackable connector 14's size, reduces stackable connector 14's volume, is favorable to improving electronic equipment's the degree of integrating.

With continued reference to fig. 7, in an exemplary embodiment, the stackable connector 14 may be configured such that the distance between the insertion port 1421 of the first port 1411 and the first contact 14131 of the first port 1411 is the same as the distance between the insertion port of the second port 1412 and the first contact 14131 of the second port 1412 along the first direction. According to the scheme, the first port 1411 and the second port 1412 can have the same plugging structure, so that the plug connectors 2 with the same specification can be adapted, and the standardization of the plug connectors 2 of the electronic equipment is facilitated. The plug 2 is an electronic device that is connected to the port 141 of the connector. Fig. 8 is a schematic view showing a structure of the connector to be connected to the plug 2.

Referring to fig. 7 and 8, the stackable connector 14 has electrical connection points 1414 between the contacts 1413 of the port 141 and the circuit board 11, and the stackable connector 14 also has connecting wires 143 connecting the contacts 1413 and the electrical connection points 1414, the connecting wires 143 having corners. The form of the corner is not particularly limited and, referring to fig. 7, in one embodiment, the corner may be a right angle corner 1431, which facilitates the manufacture of the connecting wires 143 inside the stackable connector 14. Referring to fig. 8, in another embodiment, the corner may be a chamfered corner 1432, and the chamfered corner 1432 is equivalent to replacing two square sides with a hypotenuse of a triangle as compared to the square corner 1431, so that the length of the connecting wire 143 between the contact 1413 and the electrical connection point 1414 of the port 141 of the stackable connector 14 may be relatively reduced to reduce the insertion loss of the stackable connector 14. In a specific embodiment, it is possible to make only the connection lines 143 of the second port 1412 in the stackable connector 14 have chamfered corners 1432, or to make the connection lines 143 of each port 141 of the stackable connector 14 have chamfered corners 1432, and the design may be chosen according to the actual product size and it is necessary to minimize the crosstalk generated between the connection lines 143.

As shown in fig. 7 and 8, in particular embodiments, the ports 141 of the stackable connector 14 may include a first port 1411 and a second port 1412, i.e., the stackable connector 14 includes two stacked ports 141. In other embodiments, it is also possible to make the stackable connector 14 include one first port 1411 and at least two second ports 1412, i.e., the stackable connector 14 includes at least three ports 141, such as the stackable connector 14 shown in fig. 9 including three stacked ports 141. When the stackable connector 14 includes at least three ports 141, the straight lines along the second direction Y where the first contacts 14131 of the at least two second ports 1412 are located may be located on one side of the straight line along the second direction Y where the first contacts 14131 of the first port 1411 are located, facing the first direction, while the first contacts 14131 of each second port 1412 are located on the same straight line along the second direction Y.

Referring to FIG. 10, a stackable connector 14 including three ports 141 is shown, when the stackable connector 14 includes at least three ports 141, the greater the distance of the second port 1412 from the first port 1411 along the second direction, the greater the distance of the line of the first contact 14131 of the second port 1412 from the line of the first contact 14131 of the first port 1411 along the second direction from the line of the first contact 14131 of the first port 1411 along the first direction, as shown in FIG. 10, the greater the distance of the second port B from the first port 1411, the greater the line L of the first contact 14131 of the second port A_2AA line L along which a first contact 14131 located at a first port 1411 is located₁Towards one side of the first direction X, a straight line L where the first contact 14131 of the second port B is located_2BLine L where first contact 14131 at second port A is located_2AToward one side of the first direction X. The farther the second port 1412 is from the first port 1411 in this aspect, the greater the distance between its first contact 14131 and the first contact 14131 of the first port 1411 in the first direction. The ports 141 of the stackable connector 14 may be stepped to reduce insertion loss of the stackable connector 14.

Referring to fig. 11, for the stackable connector 14 including three ports 141 in the prior art, it can be seen that, when the number of ports 141 of the stackable connector 14 is larger, the distance between the contact 1413 of the second port 1412 and the electrical connection point 1414 is farther, and the connection line 143 between the contact 1413 of the second port 1412 and the electrical connection point 1414 is longer, the more insertion loss may be generated, and the better the effect of applying the technical solution of the present application is.

With continued reference to fig. 10, in the straight line along the second direction, the distance M between the straight lines where the first contacts 14131 of the adjacent ports 141 are located is not less than 5 mm. In this scheme, the connecting line 143 between each contact 1413 and the electrical connection point 1414 can be shortened by at least 5mm, so that the insertion loss can be reduced significantly.

In addition, in the straight line along the second direction, the straight line on which the electrical connection point 1414 of the second port 1412 is located on one side of the straight line on which the contact 1413 of the second port 1412 is located, which faces the first direction, and the straight line on which the electrical connection point 1414 of the second port 1412 is located and the straight line on which the contact 1413 of the second port 1412 is located can be made to be as close as possible, so that the length of the connection line 143 between the electrical connection point 1414 of the second port 1412 and the contact 1413 is reduced, and the insertion loss of the second port 1412 can be minimized.

Referring to fig. 12a and 12b, fig. 12a shows an arrangement of contacts of a first port of a stackable connector in an embodiment of the present application, and fig. 12b shows an arrangement of contacts of a second port of the same stackable connector as the first port shown in fig. 12a in an embodiment of the present application. In this embodiment, the first port 1411 may include a plurality of contacts 1413, and the second port 1412 may also include a plurality of contacts 1413, and in the same stackable connector, the plurality of contacts 1413 of the first port 1411 are arranged in the same manner as the plurality of contacts 1413 of the second port 1412. It is advantageous to standardize the stackable connector and the connector connected thereto.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1. A stackable connector, comprising at least two ports, wherein the at least two ports are fixedly connected to a circuit board in a stacked manner along a second direction:

the at least two ports comprise a first port and at least one second port, the first port is adjacent to the circuit board, and the second port is positioned on one side of the first port far away from the circuit board;

each of the ports includes a set of contacts, the contacts being first contacts;

or each port comprises at least two groups of contacts, namely a group of first contacts and at least one group of second contacts, and the second contacts are positioned on one side of the first contacts facing to the first direction

In the straight line along the second direction, the straight line where the first contact of the second port is located on one side, facing the first direction, of the straight line where the first contact of the first port is located;

the first direction is the inserting direction of the port, the second direction is perpendicular to the first direction, and the second direction is intersected with the plane where the circuit board is located.

2. The stackable connector according to claim 1, further comprising a housing having insertion ports corresponding one-to-one to the ports, the insertion port of the second port being located on a side of the insertion port of the first port facing the first direction.

3. The stackable connector according to claim 2, wherein, in the first direction, a distance between the insertion opening of the first port and the first contact of the first port is the same as a distance between the insertion opening of the second port and the first contact of the second port.

4. The stackable connector according to claim 1, comprising a first port and at least two second ports, the second ports being located at a greater distance from the first port in the second direction, the greater the distance in the first direction of a line along which the first contact of the second port is located from a line along which the first contact of the first port is located, among lines along the second direction.

5. The stackable connector according to claim 1, wherein there are electrical connection points between the contacts of the port and the circuit board, and wherein a connecting line between the contacts of the port and the electrical connection points has chamfered corners.

6. The stackable connector according to claim 1, wherein, among the straight lines in the second direction, a distance between straight lines in which the first contacts of adjacent ones of the ports are located is not less than 5 mm.

7. The stackable connector according to claim 1, wherein there are electrical connection points between the contacts of the port and the circuit board, and among the straight lines in the second direction, the straight line in which the electrical connection point of the second port is located on a side of the straight line in which the contact of the second port is located toward the first direction.

8. The stackable connector according to any of claims 1 to 7, wherein the first port comprises a plurality of said contacts and the second port comprises a plurality of said contacts, the plurality of contacts of the first port being arranged in the same manner as the plurality of contacts of the second port.

9. An electronic device comprising at least one stackable connector according to any one of claims 1 to 8.

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