Rev 1.1
Mellanox Technologies Confidential
10
1.2.2
ConnectX-6 SNAPI (Single-slot) PCIe 2 x8 in a Row
The PCIe x16 interface comprises two PCIe x8 in a row, such that each of the PCIe x8 lanes
can be connected to a dedicated CPU in a dual-socket server. In such a configuration,
Socket Direct brings lower latency and lower CPU utilization as the direct connection from
each CPU to the network means the interconnect can bypass a QPI (UPI) and the other
CPU, optimizing performance and improving latency. CPU utilization is improved as each
CPU handles only its own traffic and not traffic from the other CPU.
A system with a custom PCI Express x16 slot that includes special signals is required for
installing the card. Please refer to
PCIe Express Pinouts Description for Single-Slot Socket
for pinout definitions.
Part Number
Y1T43
7TKND
Form Factor/Dimensions
PCIe Half Height, Half Length / 167.65mm x 68.90mm
Data Transmission Rate
Ethernet
: 10/25/40/50/100 Gb/s
InfiniBand
: SDR, DDR, QDR, FDR, EDR, HDR100
Network Connector Type
Single-port QSFP56
PCIe x16 through Edge Connector
PCIe Gen 3.0 / 4.0 SERDES @ 8.0GT/s / 16.0GT/s
SNAPI (Single-slot) PCIe 2x8 in a row
Adapter Card Bracket
Tall Bracket
Short Bracket
