"Expanding your network has never been so easy. LED indicators for installation verification and diagnostics make installing this PCI card hassle-free. Features: Compliant with IEEE 802.3 / 802.3u / 802.3ab / 802.3x. Supports 32-bit, 66/33MHz PCI Local Bus Master for high speed operation of Rev2.2/2.1 specification. One RJ-45 connector supports 1000Mbps, 100Mbps or 10Mbps network speed and Auto-MDI/MDI-X. Plug-and-Play installation; auto-setup IRQ and I/O address. Supports IEEE 802.3x full-duplex flow control. Full-duplex design to double the performance to 20/200/2000Mbps. PCI bus 32-bit architecture of Rev. 2.1 / 2.2 specification. Auto-negotiation between 10Mbps, 100Mbps, and 1000Mbps. Easy migration. 100-meter utp CAT 3/4/5 cables for 10Mbps connections, and CAT 5 cable for 100/1000Mbps connections. LED indicator lights for easy diagnostics. Easy plug-and-play setup with auto IRQ and I/O address assign. Supports IEEE 802.1Q vLAN tagging. FCC and CE EMI/EMC Standards."