Features: brand new and high quality PCI 32-bit Bus Master architecture. Very easy. Cuts back on CPU usage versus a 10/100Mbps card. Easy, Cost-feefecitve migration to Ethernet over existiong CAT-5 cabling. High Perfoming, auto-negotiating 10/100 connections. Lower support costs through advanced management capabilities. The Adapters support both 10Mbps and 100Mbps network speed. Plug and Play installation,easy to operate and supports Auto-Negotiation function. Complies with the IEEE802.3u Fast Ethernet, 100Base-TX standard and IEEE802.3 CSMA/CD 10Base-T standard. LED indicators for installation verification and diagnostic purpose, link and active. IEEE 802.3/802.3u Auto-Negotiation for automatic selection of 10Mbps or 100Mbps data transmission speed. Specifications: Standard: IEEE802.3, 802.3u, 802.3ab, 802.2, 802.3x, 802.1p/Q, 10Base-T, 100Base-TX Data Transfer Rates: 10/100Mbps Connectors: RJ-45 Bus: 32-bit PCI 2.3 On-board Memory: 64KB Support: Windows 2000/XP/NT 4.0/98 SE/ Me, DOS/DOSODI, Linux 2.2.5 or Later Special Features: WfM Baseline v2.0 Enabled for Servers, DMI 2.0 Support, WMI and SNMP-manageable, Offline Diagnostics, Wake on LAN, Intel Boot Agent Package Includes: 1 x 10/100M Network PCI card note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.