Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
IBM K1NB0 Token Ring 16/4 Busmaster Network Adapter Card
- Token Ring 16/4 Mbps support
- Busmaster architecture
- PCI interface
- Designed for legacy network environments
- Provides network connectivity for workstations or servers
- Reliable performance for Token Ring infrastructure
K1NB0 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Product Type
- Network Adapter Card
- Interface
- PCI
- Network Technology
- Token Ring
- Data Rate
- 16/4 Mbps
- Busmaster
- Yes
- Connector Type
- RJ45 (typically)
Product details
The IBM K1NB0 is a Token Ring network adapter card designed for busmaster operation. It provides connectivity to legacy Token Ring networks, supporting data transfer rates of 16/4 Mbps.
Technical Information
| Product Type | Network Adapter Card |
| Interface | PCI |
| Network Technology | Token Ring |
Additional Specifications
| Data Rate | 16/4 Mbps |
| Busmaster | Yes |
| Connector Type | RJ45 (typically) |
Description
The IBM K1NB0 is a specialized network adapter card that enables a computer system to connect to a Token Ring local area network (LAN). Token Ring was a popular networking technology, particularly in enterprise environments, before being largely superseded by Ethernet. This adapter card supports the dual data rates commonly found in Token Ring networks: 16 Mbps and 4 Mbps, allowing it to operate in various network configurations. The 'Busmaster' designation indicates that the adapter card can directly control the flow of data between itself and the system's main memory without requiring constant intervention from the CPU. This busmaster capability significantly improves network performance and reduces the processing overhead on the host system, which was a key advantage for high-performance network adapters of its era. Designed for installation in a PCI (Peripheral Component Interconnect) slot, the IBM K1NB0 provides a reliable means for servers or workstations to participate in a Token Ring network. While Token Ring is now considered legacy technology, such adapters are still relevant for maintaining or migrating data from older systems that rely on this specific network infrastructure.
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 K1NB0.