Dell X520 NDC, MPN 67XRW-RFB, is a refurbished network daughter card for Dell PowerEdge servers. It combines Intel X520 and Intel I350 networking on one card, providing two 10 Gigabit Ethernet ports and two 1 Gigabit Ethernet ports.
The mix of port speeds supports separate network connections for workloads with different bandwidth needs. Its NDC format is intended for compatible Dell PowerEdge systems. The listing identifies the card as refurbished.