Add 10G Ethernet capability to your enterprise, server, or desktop computer Quickly adds one 10G Ethernet port, through an available PCI Express 3.0 x4 slot, to server or desktop systems NBASE-TTM technology allows 2.5Gbps and 5Gbps Ethernet speeds for cable lengths up to 100 meters, over existing CAT5e/6 cable infrastructure plus Power over Ethernet (PoE) over CAT cable Intel X550 chipset supports reliable and advanced network connectivity with Intel virtualization technology Compliant with IEEE 802.3, 802.3an, 802.1Q with full duplex and Wake-on-Lan support Feature innovative power management including 802.3az EEE (Energy Efficient Ethernet) and DMA Coalescing to increase efficiency and reduce power consumption Fits both standard and low-profile system chassis with the included brackets Extra large heat-sink guards against heat build-up for reliable performance and long life