Goldstar GW451C V2 ISA Multi I/O Card Game Port Parallel Port 2x Serial Ports

Goldstar GW451C V2 ISA Multi I/O Card Game Port Parallel Port 2x Serial Ports

The Goldstar GW451C V2 is a multi-function I/O expansion card for ISA-bus desktop computers. It provides a game port, a DB25 parallel port, and two RS-232 serial ports on a single half-length ISA card, consolidating legacy peripherals onto one slot. The board revision is V2 as silk-screened on the PCB edge, and the main controller IC is a Goldstar GD74LS14.

Specifications & What's Included

• Manufacturer: Goldstar
• Model: GW451C, Revision V2
• Bus Interface: ISA (16-bit)
• Form Factor: Half-length ISA expansion card
• Game Port: 1x (DB15 female) — visible on bracket
• Parallel Port: 1x DB25 female — visible on bracket
• Serial Ports: 2x RS-232 — connectors on bracket
• Main IC: Goldstar GD74LS14 (date code 9147, visible on PCB)
• PCB: Green, half-length, single-height ISA form factor
• Card only — no cables or accessories included

Applications

ISA multi I/O cards like the GW451C were standard equipment in IBM PC/AT-compatible desktop systems of the late 1980s and early 1990s, when motherboards did not yet integrate serial, parallel, or game ports on-board. A single card like this would provide connectivity for a dot-matrix or inkjet printer (parallel port), a mouse or modem (serial ports), and a joystick or MIDI device (game port). The ISA (Industry Standard Architecture) bus was the dominant expansion interface of the era before PCI took over in the mid-1990s, and cards like this GW451C are still sought by hobbyists, vintage PC restorers, and industrial users maintaining legacy ISA-based systems that require these classic I/O ports. The GW451C is compatible with any desktop system equipped with an ISA slot, including IBM PC, XT, and AT-class machines and their compatibles.