Axiom 817738-B21-AX. Host interface: PCIe, Output interface: RJ-45, Expansion card standard: PCI 3.0. LED indicators: Link. Data transfer rate (max): 10 Gbit/s, Supported protocols: Data Protocol: Ethernet. Linux operating systems supported: Red Hat Enterprise Linux WS 7.0, Server operating systems supported: Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Other operating systems supported: FreeBSD, VMware ESX/ESXi 5.1. Width: 0.709" (18 mm), Depth: 2.76" (70 mm), Height: 6.57" (167 mm)