Apple 805-0854-B Shielded Module Assembly for Power Mac M3548 8500 Macintosh

Apple 805-0854-B Shielded Module Assembly for Power Mac M3548 8500 Macintosh

The Apple 805-0854-B is a metal-shielded internal module assembly pulled from an Apple Power Mac M3548 (Power Mac 8500). The unit is housed in a compact aluminum enclosure with EMI shielding and connects to the host system via a multi-pin IDC ribbon connector on one end. A circular cutout on the top panel and multiple connector ports on the side panel indicate this module interfaces with several internal subsystems. The part number 805-0854-B is stamped directly onto the chassis rail and is clearly legible.

Specifications & What's Included

• Manufacturer: Apple
• Part Number: 805-0854-B (stamped on chassis)
• Assembly origin: Assembled in Singapore (per label)
• Lot Number: 5G19 B (per label)
• Enclosure: Metal/aluminum shielded housing
• Primary interface: Multi-pin IDC ribbon connector (one end)
• Side panel connectors: One 3.5mm-style round jack, three push-type round connectors, one hex-nut threaded connector
• Additional connector: Small multi-pin green header on side panel
• Compatible with: Apple Power Mac M3548 (Power Mac 8500)
• Condition: Used, pulled from Power Mac M3548

Applications

The Power Mac 8500, sold under the M3548 model identifier, was Apple's high-end desktop computer from the mid-1990s, featuring a PowerPC 604 processor and designed for professional creative and multimedia workflows. Internal module assemblies like this one served specific roles within the Power Mac's architecture — interfacing drives, audio subsystems, or I/O components with the motherboard via ribbon cable. This part is suited for technicians and enthusiasts maintaining, restoring, or repairing Power Mac 8500 systems, where original Apple OEM replacement components are increasingly hard to source. Legacy Mac collectors and repair depots working on 604-era Power Macs will recognize the shielded module form factor common to Apple's mid-1990s tower designs.