Complies with PCI-E Revision 1.1 Mini PCI-E with transfer rate 2.5GB/s full duplex Channel A high performance 1000baset-t Ethernet controller card Backward compatible to 10/100baset-t networking 10/100/1000Mbps data rate auto negotiation operation Complies with PCI-e Revision 1.1 Mini PCI-e with Transfer Rate 2.5Gb/s Full Duplex Channel A High Performance 1000BASE-T Ethernet Controller Card Backward Compatible to 10/100BASE-T Networking 10/100/1000Mbps Data Rate Auto Negotiation Operation Compatible to Existing CAT-5 UTP Cabling Supports Jumbo Frame to 9K Bytes Fully Compliant with IEEE 802.1P Layer 2 Priority Encoding Capacity: 1-port | Model: Mini PCIe LAN Card Take advantage of the Mini PCI-E V1.1 technology, perform at peak 1000base-t network speed, cooperates with almost all operating systems on the market, consumes less power, and occupies less space. Realtek RTL8168C chipset.