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55H6821 - IBM 16bit Turbo 16/4 Token Ring ISA Adapter
- 16 Mbit/s data transfer rate
- Token Ring networking technology
- ISA bus interface for legacy systems
- Designed for IBM environments
- Provides reliable network access for older infrastructure
- Supports specific legacy network protocols
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Key specifications
See full specs ↓- Interface
- ISA
- Speed
- 16 Mbit/s
- Technology
- Token Ring
Product details
The IBM 55H6821 is a 16 Mbit/s Turbo Token Ring ISA Adapter, designed for legacy IBM systems requiring Token Ring network connectivity. It offers a reliable solution for older networks that still utilize this specific networking technology.
Technical Information
| Interface | ISA |
| Speed | 16 Mbit/s |
Additional Specifications
| Technology | Token Ring |
Description
The IBM 55H6821, identified by its SKU, is a specialized network adapter that supports the Token Ring networking protocol at a speed of 16 Mbit/s. This adapter is built with an ISA (Industry Standard Architecture) bus interface, making it compatible with older computer systems that feature ISA expansion slots. It was primarily designed for IBM environments where Token Ring was a prevalent networking standard. This adapter is crucial for maintaining connectivity in legacy networks that have not yet migrated away from Token Ring technology. The 'Turbo' designation suggests an enhanced performance version within the 16 Mbit/s Token Ring category, potentially offering improved efficiency or features compared to standard implementations. Its primary function is to enable communication between computers on a Token Ring network. For organizations still operating with Token Ring infrastructure, the IBM 55H6821 provides a necessary link to the network. Its ISA interface signifies its place in the history of computer networking hardware, catering to a specific niche of users who require compatibility with older IBM or other ISA-based systems. It represents a reliable solution for extending the life of existing legacy network setups.
Condition: Refurbished
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Typically 1–2 days handling, 3–7 days in transit.
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