SE-LG8111C-BTPCI Express Gigabit Ethernet Card, is a high-performance 10/100/1000M BASE-T Ethernet LAN card. Designed with Realtek RTL8111F chipset, it is perfect for home and office use. It provides a low-cost network solution for connecting high-speed local area networks, data transfer rate: up to 1000Mbps, through a set of 4 twisted pair copper wires, the long distance is 100 meters. It is 100 times faster than 10/100BASE-T systems and is 100% fully backward compatible It can be easily plugged into almost any existing CAT-5 network. Specification Compliant with PCI Express Revision 1.1, 1- (X1) bus interface High-performance 1000BASE-T Ethernet controller card, backward compatible with 10/100BASE-T networks 10/100/1000Mbps data rate auto-negotiation operation Compatible with existing CAT-5 UTP cables Fully compliant with IEEE802.3, IEEE802.3u, IEEE802. Supports half/full duplex mode and 802.3x flow control Support IEEE802.1P Layer2 priority encoding Supports IEEE 802.1Q VLAN tagging Supports jumbo frames up to 9K bytes Transmit/receive on-chip buffering support detection and automatic correction operations Power down/reduce power consumption Wake-on-LAN and Remote Wake-up support 1 x RJ45 Gigabit LAN port Standard and low profile chassis supported size:6.5 x 4CM Material:PCB colour:Black Package Contents: 2 x PCI-E 8111C Gigabit Ethernet Network Card 2 x Short Iron Piece 2 x CD-Driver 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.