The Intellinet Fast Ethernet PCI Network Card is a high-performance network adapter designed to fit into the PCI slot of your desktop computer. It allows you to upgrade your computer to support Fast Ethernet network speeds, providing 10 times the speed of 10Base-T Ethernet. Faster Throughput The Intellinet Fast Ethernet PCI Network Card supports throughput rates of up to 200 Mbps when running in full duplex mode. This is ideal for resource-intensive CAD/CAM, client-server database, multimedia, pre-press, advertising graphics, server and mission-critical applications. Auto-Negotiation The Intellinet Fast Ethernet PCI Network Card will automatically detect the network speed that the LAN switch port is set to and run at the same speed. The card supports 10Base-T Ethernet and 100Base-TX Fast Ethernet. Full Duplex When running in full duplex mode, the Fast Ethernet PCI Network Card provides the following throughput rates: 20 Mbps (10Base-T Ethernet) and 200 Mbps (100Base-TX Fast Ethernet).