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 support 1 x RJ45 Gigabit LAN port Standard and low profile chassis supported size:6.5 x 4CM Material:PCB colour:Black Package Contents: 1 x PCI-E 8111C Gigabit Ethernet Network Card 1 x Short Iron Piece 1 x CD-Driver Only the above package content, other products are not included. Note: Light 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. 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. Designed with Realtek RTL8111F chipset, it is perfect for home and office use. It can be easily plugged into almost any existing CAT-5 network. It is 100 times faster than 10/100BASE-T systems and is 100% fully backward compatible SE-compatible with LG8111C-BTPCI Express Gigabit Ethernet Card, is a high-performance 10/100/1000M BASE-T Ethernet LAN card.