Dell Mellanox MCX384A-FCAA 2-Port 40GbE QSFP+ Mezzanine Network Card — Y5WKX

Offered here is a dual-port 40GbE QSFP+ mezzanine network card based on the Mellanox MCX384A-FCAA, identified by Dell part number Y5WKX.

Tagged VLANs let a single port serve more than one network segment. With more than one port, traffic can be split by role or links teamed for redundancy. As a Dell part it is intended for PowerEdge servers with the matching slot; confirm the part number against your system. Direct-attach copper cables suit short in-rack links; optical modules cover longer runs. SFP ports take optical transceivers or direct-attach copper cables for links to top-of-rack switches. Dell part numbers identify the exact revision, which matters more than the description when several look-alike parts exist. Driver support varies by operating system and hypervisor release, so check yours first. Hardware offloads on the adapter take checksum and segmentation work off the processors. Check Y5WKX against the service configuration of your Dell system before ordering.

Our Johannesburg team inspects and bench-tests the part before it is released as certified refurbished.