IBM 07H1266 Riser Card 5-Slot Expansion Board for AS/400 System/36

IBM 07H1266 Riser Card 5-Slot Expansion Board for AS/400 System/36

The IBM 07H1266 is a 5-slot riser or expansion board designed for IBM midrange computer systems. This card extends the internal expansion capacity of the host system by providing additional slots for installed option cards and adapters. Riser boards were critical components in IBM's AS/400, System/36, and System/38 product lines, allowing technicians and system integrators to add I/O controllers, communication adapters, and specialty option cards to meet specific business and operational requirements.

Specifications & What's Included

• Manufacturer: IBM
• Model: 07H1266
• Type: Riser / Expansion Board
• Slot Configuration: 5 expansion slots
• Compatible Systems: IBM AS/400, System/36, System/38 and related midrange platforms
• Form Factor: Card/Module
• Condition: Used, inspected, pulled from working environment

Applications

Riser cards like the 07H1266 are used in IBM midrange computer systems to expand the internal slot capacity for option cards. During the late 1980s and 1990s, these riser boards were standard in System/36 and System/38 configurations, and later in AS/400 systems, allowing businesses to add communication controllers (SDLC, async, Token Ring), tape and disk adapters, and specialty I/O cards without requiring external expansion units. These cards remain in use today in legacy system maintenance and upgrade environments where organizations continue to support installed AS/400 and System/36 installations.