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3Com 3C509B-TP Etherlink III 1 x Ports 10Base-T 10Mb/s Ethernet ISA Network Interface Card
- 16-bit ISA bus interface.
- 10 Mbps Ethernet speed.
- 10Base-T standard support.
- RJ-45 connector for twisted-pair cabling.
- Part of the reliable Etherlink III series.
- Features plug-and-play configuration.
- Designed for legacy desktop systems.
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Product Overview
The 3Com 3C509B-TP Etherlink III ISA Network Interface Card is a legacy Ethernet adapter designed for ISA bus computers. It provides 10 Mbps 10Base-T connectivity.
Technical Information
| Interface | 16-bit ISA |
| Speed | 10 Mbps |
| Standard | 10Base-T |
Additional Specifications
| Connector | RJ-45 |
| Number of Ports | 1 |
Product Description
The 3Com 3C509B-TP Etherlink III ISA Network Interface Card is a legacy networking component designed to bring Ethernet connectivity to desktop computers utilizing the ISA (Industry Standard Architecture) bus. This card operates at a speed of 10 Mbps, adhering to the 10Base-T standard, which is the common specification for Ethernet over twisted-pair copper cabling. The 'TP' designation specifically indicates its primary support for twisted-pair connections via the standard RJ-45 modular connector. As a member of the Etherlink III family, the 3C509B-TP is recognized for its reliability and performance within the context of its era. It was designed to be relatively easy to install and configure, often featuring plug-and-play capabilities that allowed the operating system to automatically detect and set up the card, minimizing the need for manual jumper or DIP switch settings. This made it a popular choice for both individual users and network administrators looking to equip multiple machines with network access. The 16-bit ISA interface ensures compatibility with a wide range of older PC motherboards. While 10 Mbps Ethernet is significantly slower than modern networking standards, the 3C509B-TP was a crucial piece of hardware for enabling basic network functions such as file sharing, printer access, and communication in small to medium-sized business environments and home networks during the 1990s. It represents a foundational step in the widespread adoption of Ethernet technology.
