CX512A MELLANOX CONNECTX-5 25GBE DUAL-PORT SFP28 PCI-E NETWORK CARD MCX512A-ACAT
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Open box
$169.99
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About this item
For homelab builders and small server rooms, a Mellanox ConnectX-5 25GbE dual-port SFP28 network card is a common step up from 10GbE. This open box listing carries the part numbers CX512A and MCX512A-ACAT. You can use those numbers to check it against compatibility lists for your NAS, hypervisor or workstation.
Will a 25GbE SFP28 PCIe card fit my server?
It plugs into a PCI-E slot, but the title doesn't state the lane width or the bracket height. Check the listing photos and description for the bracket type, and confirm your board has a suitable free slot.
- Transceivers and cables: SFP28 modules or DAC cables are usually sold separately, so see what's included.
- Bracket: full-height versus low-profile matters in 1U and 2U chassis.
- Open box state: look for notes on prior use or testing.
- Firmware: ask the seller whether the card runs OEM-branded or standard firmware.