Vintage late-1980s DRAM expansion / memory board labeled RAM-1.

Markings on the reverse (per seller):

Relliance / Reliance — V-O — REV 1.1 — 8822

(8822 = 1988, week 22)

Memory

• Populated with 32 × 256K × 1 DRAM chips (41256 family)

• Mix of Samsung KM41256AP-12 (Korea) and NEC 41256-series parts

• Total capacity: 1 MB (typical for this chip count)

Physical

• Green PCB with gold-finger edge connector

• DIP DRAM in 4 rows

• Approximate size shown with ruler in photos (compact card, not a full-length ISA board)

• Looks like a proprietary industrial / control / computer memory card rather than a common IBM PC EMS card

What this is good for

• Repair or restoration of matching Reliance / industrial equipment

• Vintage computing / electronics collection

• Chip harvest (32 usable 41256 DRAMs if you desolder and test)

• Display or parts

What it is not

• Not a modern DIMM/SODIMM

• Not tested in a system

• Compatibility is unknown without the original machine or schematic

Ships as shown. No cables, manuals, or original packaging.