Genuine OEM Dell 10/100/1000MBps Gigabit PCI-X Network Ethernet Card M5531 0M5531 110521-92 for PowerEdge 1400SC 1650 350 4600 650 6600 6650 750 PowerVault 775N Genuine OEM Dell 10/100/1000MBps Gigabit PCI-X Network Ethernet Card Model: M5531 0M5531 110521-92 Compatible With But Not Limited To: PowerEdge 1400SC 1650 350 4600 650 6600 6650 750 PowerVault 775N