HP 10GbE Server Adapter is an eight-lane (x8) PCI Express (PCIe) 10 Gigabit network solution offering optimal throughput for a ProLiant Ethernet adapter. HP 10GbE Server Adapter PCI Express Gen2 adapter ships with two SFP (Small Form-factor Pluggable) cages suitable for connecting to Direct Attach Cable (DAC) or fiber modules supporting SR fiber optic cabling.