M.2 B+M KEY RTL8111H Gigabit NIC is a high-performance 10/100/1000M BASE- Ethernet LAN controller It supports the IEEE802.3u specification for 10/100Mbps Ethernet and the IEEE802. specification for 1000Mbps Ethernet Supports the auxiliary power automatic detection function and automatically configure the relevant bits of the PCI power management register in the PCI configuration space Single-channel (x1) PCIe with a throughput of up to 2.5Gbps Plug and Play Applicable network: Gigabit Ethernet server Main chipset: Realtek RTL8111H Bus type: M.2 B+M Media interface: 4 x RJ45, copper twisted pair Transmission rate: 10/100/1000Mbps (data rate auto-negotiation operation) High-performance 1000BASE- Ethernet controller card, backward compatible with 10/100BASE- network Network topology: fully compliant with IEEE802.3, 802.3u, 802. Support full-duplex flow control (IEEE802.3x) Support IEEE802.1P Layer 2 priority encoding Support IEEE802.1Q VLAN tagging Management function: IPv4 and IPv6 checksum offload support Receive side scaling (RSS) with two hardware receive queues Support 9k jumbo frames Crossover detection and automatic correction operation : for ME/98SE/2000/XP/Vista/Win 7/Win 8/Win 10 32&64bit for Server2003/Server/Server2008/Server2012 32&64bit for Linux, DOS, for OS X10.4.X or higher Colour:As Shown Material:PCB Package Contents: 1 * Ethernet NIC 1 * RJ45 Terminal Board 1 * Network Cable 1 * Low Profile Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.