The Compaq (HP) Intel 10/100Base-T NC3121 PCI Network Interface Card: 

Specifications: 

Model: NC3121 

Part Number: 116188-001 

Data Transfer Rate: 10/100Mbps 

Interface: PCI 

Connector: RJ-45 

Standards: 

IEEE 802.3 10Base-T Ethernet1 

IEEE 802.3u 100Base-TX Fast Ethernet2 

IEEE 802.3x Full Duplex Flow Control3 

Duplex Mode: Half or full-duplex 

Power Management: Supports Wake-on-LAN 

Compatibility: Designed for use in Compaq (HP) systems 

Diagnostic LEDs: Yes 

Plug & Play: Yes 

Operating Systems: Compatible with various Windows operating systems 

Features: 

Auto-negotiation: Automatically detects and connects to either 10Mbps or 100Mbps networks. 

Full Duplex Support: Capable of doubling network speed to 200Mbps with full duplex technology. 

Wake-on-LAN: Allows remote booting of the computer from a networked location.