Fully Plug and Play compatible A high performance 1000BASE-T Ethernet controller card Backwards compatible to 10/100BASE-T networking 10/100/1000Mbps data rate auto negotiation operatio Compatible to existing CAT-5 UTP Fully compliant with IEEE 802.3, 802.3u, 802. Supports full duplex flow control (IEEE 802.3x) Supports IEEE 802.1P Layer 2 Priority Encoding Supports IEEE 802.1Q VLAN tagging Supports jumbo frame to 9K bytes Crossover Detection and Auto Correction operation Realtek 8111 chips. System Requirements: ME, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10 32-/64-bit Server 2003, 2008 and 2012 32-/64-bit Linux, for DOS MACOS X 10.4.X or above Colour:As Shown Material:PCB+Plastic+Metal Package Contents: 1 * MINI PCI-E network card main card 2 * RJ45 port 2 * cable, with mounting screws 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. 1. Support existing CAT-5 UTP with automatic crossover detection 2. Fully compliant with PCI-Express Base Specification Revision 1.1 3. Single- (x1) PCI-Express with throughput up to 2.5Gbps 4. Compatible with PCI-E Mini Card Electromechanical specification revision 1.2 5. Compatible with Half size Mini card type form factor