ConnectX®-4 VPI Single and Dual QSFP28 Port Adapter Card User Manual for Dell PowerEdge
Rev 1.3
Mellanox Technologies
44
Appendix A: Interface Connectors Pinout
A.1
QSFP28 Connector Pinout
Figure 8: Connector and Cage Views
Table 9 - Connector Pin Number and Name to Signal Name Map
Connector Pin Number
Connector Pin Name
Port A Signal Name
1
GND
GND
2
TXN_2
Tx2n
3
TXP_2
Tx2p
4
GND
GND
5
TXN_4
Tx4n
6
TXP_4
Tx4p
7
GND
GND
8
ModSelL_Port0
ModSelL
9
ResetL_Port0
ResetL
10
VccRx
11
SCL
SCL
12
SDA
SDA
13
GND
GND
14
RXP_3
Rx3p
15
RXN_3
Rx3n