IBM 31L5289 16/4 Token Ring PCI Management Adapter is a legacy networking interface card designed for enterprise systems requiring Token Ring protocol support. Part number 31L5289, this PCI-based adapter delivers 16/4 Mbps dual-speed Token Ring connectivity, enabling compatibility with both 16 Mbps and 4 Mbps Token Ring networks common in pre-2000s financial, manufacturing, and institutional environments. The card features standard PCI form factor for compatibility with desktop and server platforms supporting 5V PCI slots. Refurbished unit includes necessary components for Token Ring network integration in systems where legacy network protocol support remains operational.
Typical applications include connection to IBM AS/400 systems, mainframe networks, and distributed computing environments that relied on Token Ring topology before Ethernet migration. Installation requires standard assembly and driver configuration for supported operating systems.
Tested and guaranteed fully functional. Available via quote.
