Original vintage IBM 8-bit ISA memory expansion board for IBM PC and PC/XT class computers. This board expands system RAM from 64KB up to 256KB depending on DIP-switch configuration and installed memory banks, making it ideal for restoring or upgrading an original IBM 5150 or 5160 system.

These cards were widely used in early IBM PCs to reach higher memory limits required for business software, DOS applications, and early games. The board features full-size through-hole ICs, classic gold-edge ISA connector, and heavy-duty IBM-era build quality.

Perfect for:

• Vintage IBM PC restorations

• Retro computing builds

• Collectors of original IBM hardware

• Museums or display systems

This is an authentic IBM-era expansion card — not a modern reproduction — and a great match for anyone building or maintaining a true period-correct PC or XT system.

You will receive the exact board shown in the photos.