Vintage IBM Token-Ring Network 16/4 ISA Adapter CardItem Details:

• Brand/Manufacturer: IBM Corporation
• Part Number / Assembly: 92F4535 / 2890042PQ 3
• Country of Origin: Japan (Main logic chips and memory microchip modules marked Japan)
• Interface Bus: 8-Bit ISA (Compatible with standard legacy IBM PC, XT, AT, and 286/386/486 clone architectures)
• Chipset Modules: Integrated large metal-shielded IBM 9314 / 22L0001SS controller system assembly
• Onboard Firmware: Socketed pairing chips marked 92F4538 EVEN and 92F4539 ODD (1990, 1991 IBM Corp)
• Network Hardware Speeds: Dual-speed capable (Supports 16 Mbps and 4 Mbps networking protocols)
• Rear Bracket Interface Port: 1x 9-Pin Female DB-9 connector port (Distinctively labeled with green/white "16/4" status sticker)

Condition:

• Untested / Sold AS-IS: This legacy network adapter card was pulled from a stored retro environment and is completely untested for power configuration, link connectivity, or data traffic packet transmission. It is being listed strictly as-is for parts, repair, retro-computing hobby labs, or historical hardware display collection.
• Cosmetic State: Excellent physical condition. The green board substrate is incredibly crisp, the rear metal interface bracket is sturdy, edge pin contacts are clean, and there are no signs of trace corrosion, component scratches, or damaged modules.

Listing includes the single physical 8-bit Token-Ring network expansion board only. No proprietary connection cables, media filter accessories, configuration driver diskettes, or setup manuals are included.