SIOM 4-Port 25GbE SFP28 module: w/ Mellanox ConnectX-4
Network Interface Module - Add-On Module Bus - SFP28 Connector(s) - 2-Port - Mellanox ConnectX-4 Chipset - 25G-LAN SFP28 Standard - SIOM (Super I/O Module) Form Factor - SFP28 x 4x SFP Ports (1Gb) - 1 Year Depot Carry-In Mfg. Warranty