Dell QLogic FastLinQ 41262 Dual Port 25GbE Mezzanine Card with Storage Offloads (540-BCJF) is a server network adapter for wired Ethernet connectivity. It provides two 25 Gigabit SFP28 ports, with support for 10 Gigabit and 25 Gigabit Ethernet links.
The card connects through a PCI Express 3.0 x8 interface. Its listed networking features include RDMA, RoCE, iWARP, iSER and NIC partitioning, supporting server network and storage-offload configurations.
Dell lists the adapter for PowerEdge MX740c and MX840c systems. The product reference is manufacturer part 5RX80.