Connect your PC to a 10/100 Ethernet network with this standard and affordable PCI network interface card (NIC). # Realtek 8139 chipset # IEEE 802.3 & 802.3u compliant # Auto negotiation for 10 or 100 Mbps # Full & half duplex support # Boot ROM socket # Novell approved for NetWare 3/4/5 # Microsoft certified for Windows