StarTech.com 1 Port PCI Express Gigabit Ethernet NIC Network Adapter Card (ST1000SPEX) Add feature rich Gigabit networking through a PCI Express slot, suitable for a desktop, workstation or sever use Dual profile design to fit into Full or Low Profile/small form factor (SFF) systems Backed by a StarTech.com lifetime warranty and free lifetime technical support A single 10/100/1000Mbps compatible RJ45 Ethernet port Network Link/Activity and 10/100/1000 Mbps LED indicators Fully Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3x, and IEEE 802.3ab Jumbo frame support Full and half duplex support