Lenovo Mellanox ConnectX-4 Lx 10/25GbE SFP28 2-Port PCIe Ethernet Adapter

Older ThinkSystem and System x servers often carry the Lenovo Mellanox ConnectX-4 Lx 10/25GbE SFP28 2-Port PCIe Ethernet Adapter, part number 01GR250, and it remains a common replacement part. It has two SFP28 ports rated at 10/25GbE and a ConnectX-4 Lx controller listed under the NVIDIA name.

Dual-speed ports mean the card can serve 10GbE switches or 25GbE switches, which helps when a data center is mid-migration. Two ports give you redundancy or separate networks. The SFP28 cages accept compatible modules and direct attach cables that you source separately.

A PCIe adapter, it needs a standard slot. If you are replacing a failed card in an existing host, matching the original part number keeps firmware, drivers and any Lenovo support entitlement aligned, so use the exact number from your system rather than a similar-looking one.

Offers cover new, refurbished and used stock. New and refurbished units come with 1 year or 3 years of warranty, and used units with 90 days. Send us your quantity and server model when you request pricing.