The NC522SFP is an eight lane (x8) PCI Express (PCIe) 10 Gigabit network solution offering the highest bandwidth available in a ProLiant Ethernet adapter. This PCI Express Gen 2 adapter ships with two SFP+ (Small Form-factor Pluggable) cages suitable for connecting to Direct Attach Cable (DAC) or fiber modules supporting SR LR and LRM fiber optic cabling.