Dell PowerEdge C6400 C6420 Series Mellanox CX4421A Dual Port 25GbE SFP28 Network Adapter Interface Card DA0F03PC8C0.
Data Transfer Rate: 25GbE/s
Network/Communications: 25GbE Ethernet
Input/Output Ports: 2x SFP28
Interface: PCI-Express 3.0 x8
Type: Network Adapter Interface Card