Chapter 2 Interfaces; Ethernet Sfp28 And Qsfp28 Interface; Pci Express Interface; Table 8: Pci Express Interface - Mellanox Technologies ConnectX-5 Ex User Manual

2 Interfaces
Each adapter card includes the following interfaces:
• "Ethernet SFP28 and QSFP28 Interface"
• "PCI Express Interface"
• "LED Interface"
• "Heatsink Interface"
• "SMBus Interface"
• "Voltage Regulators"
2.1

Ethernet SFP28 and QSFP28 Interface

The network ports of the ConnectX®-5 adapter card are compliant with the IEEE 802.3 Ethernet
standards listed in
connectors.
2.2

PCI Express Interface

Table 8 describes the supported PCIe interface in ConnectX-5 and ConnectX-5 Ex adapter cards.
Table 8 - PCI Express Interface
ConnectX-5
ConnectX-5
ConnectX-5 Ex
Rev 1.7
Please note that the adapter card includes special circuits to protect the card/server from
ESD shocks when plugging copper cables.
Table 7. Ethernet traffic is transmitted through the cards' SFP28 and QSFP28
Supported PCIe Interface
PCIe Gen 3.0 (1.1 and 2.0 compatible)
through x8 or x16 edge connectors
PCIe Gen 3.0/4.0 (1.1 and 2.0 compati-
ble) through x16 edge connectors
Mellanox Technologies
Features
Link Rates: 2.5. 5.0 or 8.0GT/s
Auto Negotiation to: x16, x8, x4, x2 or x1
Support for MSI/MSI-X mechanisms
Link Rates: 2.5. 5.0, 8.0 or 16.0GT/s
Auto Negotiation to: x16, x8, x4, x2 or x1
Support for MSI/MSI-X mechanisms
Interfaces
15