Intel Pro/100 S 10/100 PCI Network Card 781767-001 Ethernet

Intel Pro/100 S 10/100 PCI Network Card 781767-001 Ethernet

The Intel Pro/100 S is a classic PCI-based Fast Ethernet network adapter designed for desktop computers of the 1990s and early 2000s. This card provides 10/100 Mbps connectivity via standard RJ-45 Ethernet, supporting both legacy 10 Mbps networks and Fast Ethernet (100 Mbps) environments. The Pro/100 S was one of Intel's mainstream network solutions for personal computers during the Pentium-era PC market.

Specifications & What's Included

• Brand: Intel
• Model: Pro/100 S
• Primary Part Number: 781767-001
• Secondary Part Number: 781767-003
• Card Type: PCI Network Adapter
• Bus Interface: PCI (Peripheral Component Interconnect)
• Ethernet Speed: 10/100 Mbps (auto-sensing)
• Connector: RJ-45 (standard Ethernet)
• Protocol: IEEE 802.3 10BaseT/100BaseTX
• Form Factor: Full-length PCI card
• Compatible with: Standard PCI-equipped desktop computers (Intel, AMD, and compatible systems)

Applications

The Pro/100 S was designed as a primary network adapter for desktop computers spanning the late 1990s through early 2000s. It supported both legacy 10 Mbps Ethernet networks (which were still in use at that time) and the transition to Fast Ethernet (100 Mbps), making it a versatile choice for office environments, small business networks, and home systems. These adapters are still occasionally used in vintage computer restoration projects, legacy system maintenance, and retro computing builds where period-appropriate hardware is desired. The auto-sensing capability allowed flexible deployment across mixed network environments without manual configuration.