Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
3C509B - 3Com 16-Bit ISA Base-T Etherlink III Network Card
- 10Base-T Ethernet network interface card.
- Utilizes the ISA bus interface.
- Features a single RJ45 port.
- Provides 10Mb/s network speed.
- Part of the 3Com Etherlink III family.
- Designed for older computer systems and networks.
Was $102.00 · You save $15.00
Key specifications
See full specs ↓- Network Standard
- 10Base-T Ethernet
- Interface
- ISA
- Port Type
- 1 x RJ45
- Data Transfer Rate
- 10 Mb/s
Product details
The 3Com 3C509B Etherlink III is an ISA bus network interface card providing 10Base-T Ethernet connectivity. It features a single RJ45 port for 10Mb/s network speeds.
Technical Information
| Network Standard | 10Base-T Ethernet |
| Interface | ISA |
Additional Specifications
| Port Type | 1 x RJ45 |
| Data Transfer Rate | 10 Mb/s |
Description
The 3Com 3C509B Etherlink III is a classic network interface card designed for legacy computer systems that utilize the ISA (Industry Standard Architecture) bus. This card provides basic 10Base-T Ethernet connectivity, enabling a connection to networks operating at 10 megabits per second. It features a single RJ45 port, which is the standard connector for twisted-pair Ethernet cables, making it compatible with older network infrastructure. This network card was widely used in the era when ISA was the dominant bus standard for expansion cards. It is suitable for older desktop computers, workstations, or servers that require basic network access for tasks such as file sharing, internet browsing, or connecting to legacy network devices. The 10Mb/s speed is sufficient for less demanding network tasks but will be a bottleneck for modern high-speed networking. The Etherlink III series from 3Com was known for its reliability and ease of use in its time. The 3C509B typically featured plug-and-play capabilities or simple configuration through jumpers or software. It represents a piece of networking history and is useful for maintaining or restoring older computer systems that rely on ISA expansion slots.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for 3C509B.
