Up for sale is a vintage 1980s SWP Microcomputer Products 128K/192K Dynamic RAM Memory Expansion Board for S-100 bus systems.This board (Assy # 13-00109-001 / REV D) is currently configured with 128K of RAM via 16 socketed Mostek MK4564N-15 DRAM ICs, leaving an additional 16 sockets open to expand up to 192K.Features & Specs:
• Brand / Model: SWP Microcomputer Products 128K/192K RAM Board
• Bus Interface: Standard 100-Pin S-100 Edge Connector
• Installed Memory: (16x) Mostek MK4564N-15 64Kx1 Dynamic RAM Chips (128K Total Installed)
• Expansion Sockets: 16 open DIP sockets for additional memory expansion
• Hardware Details: Large black anodized aluminum heatsink with heavy-duty LM323K TO-3 voltage regulator, onboard breadboard prototyping area, 5V status LED, and Parity Error indicator LED
• Part Numbers: ASSY # 13-00109 / PCB 41-00109-001 REV D (Sticker REV G-001 85001086)Condition:
Cosmetically clean condition. Solder points, traces, and gold-plated bus fingers are well-preserved with no cuts or severe wear. Untested and sold AS-IS due to vintage electronic nature for restoration, collector use, or display.Item will be carefully packaged inside anti-static ESD shielding and securely boxed for shipping.