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 dual port PCI Express Gen 2 adapter supports SFP (Small Form-factor Pluggable) connectors, requiring either Direct Attach Cable (DAC) for copper environments, or fiber transceivers supporting SR, LR, or LRM optics plus fiber cables for fiber optic environments.