Stable and reliable chipset RTL8139D, Fully comply with PCI 2.2 bus specification, please kind noted this is not a PCIE card 1 RJ45 interface, support Auto-Negotiation technology, 10/100M and full / half duplex auto-adjust Fully compatible with IEEE 802.3 10Base-T and IEEE 802.3 u 100Base-TX standards With BOOTROM slot, fully supports NetWare 3. x, 4. x RPL server, Microsoft Windows NT 4. x diskless Win98/Win95/DOS start on RPL and PXE Server Supports remote boot workstation and ACPI power management modes, LED indicator and diagnostic software for simple troubleshooting