M.2 B+M Key RTL8111H Gigabit Nic is a high-performance 10/100/1000M Base-T Ethernet Lan controller It supports the IEEE802.3u specification for 10/100Mbps and IEEE802.3ab 1000Mbps Ethernet auxiliary power automatic detection function will automatically configure relevant bits of Pci management register in configuration space Single-channel (x1) PCIe with throughput up to 2.5Gbps Plug Play Applicable network: server Main chipset: Realtek RTL8111H Bus type: B+M Media interface: 4 x RJ45, copper twisted pair Transmission rate: 10/100/1000Mbps (data rate auto-negotiation operation) 1000BASE-T controller card, backward compatible 10/100BASE-T network Network topology: fully compliant IEEE802.3, 802.3u, 802.3ab Support full-duplex flow control (IEEE802.3x) IEEE802.1P Layer 2 priority encoding IEEE802.1Q Vlan tagging function: IPv4 IPv6 checksum offload support Receive side scaling (Rss) two hardware queues 9k byte jumbo frames Crossover correction operation Operating system: Windows Me/98SE/2000/Xp/Vista/Win 7/Win 8/Win 10 32&64bit Server2003/Server/Server2008/Server2012 Linux, Dos, Mac Os X10.4.X or higher Colour:As Shown Material:Pcb Package Contents: 1 * Nic RJ45 Terminal Board Cable Low Profile Bracket Only above content, other products are not included. Note: Light reflection different displays may cause color item picture little from real thing. measurement allowed error +/- 1-3cm.