Diamond Speedstar 64 ISA Video Card 23020039-303 S3 Trio64 VGA 16-bit 1996

Diamond Speedstar 64 ISA Video Card 23020039-303 S3 Trio64 VGA 16-bit 1996

The Diamond Multimedia Speedstar 64 is a 16-bit ISA graphics card built around the S3 Trio64 chipset, designed for mid-1990s desktop PCs with ISA bus slots. It provides standard VGA output via a DB-15 connector and represents the era when ISA graphics cards were being superseded by PCI — making it an essential component for vintage PC restoration and retro computing builds. Part number 23020039-303 identifies this as the SS 64 ISA A3 1+1 board revision, manufactured by Diamond Multimedia Systems, Inc. in 1996.

Specifications & What's Included

• Manufacturer: Diamond Multimedia Systems, Inc.
• Product: Speedstar 64
• Part Number: 23020039-303
• Board Revision: Rev A (SS 64 ISA A3 1+1)
• Main Chipset: S3 Trio64
• Bus Interface: ISA 16-bit
• Video Output: VGA DB-15 (analog)
• Memory: onboard DRAM (4 chips visible on PCB)
• Bracket: Full-height ISA bracket installed
• Year of Manufacture: 1996
• Card only — no driver diskettes, software, or accessories included

Applications

The Diamond Speedstar 64 is a mid-1990s ISA graphics card from the final years of the ISA video card era. It was designed for DOS and early Windows 3.x/95 desktop PCs, providing 2D graphics acceleration for everyday computing tasks, desktop publishing, and general office use. The S3 Trio64 chipset was one of the most widely used graphics processors of the early-to-mid 1990s, found in a broad range of OEM and aftermarket cards across the IBM-compatible PC market. Cards like this are sought today primarily for vintage PC restoration — particularly for systems built around 486 and early Pentium motherboards that lack PCI slots, or where ISA-bus graphics compatibility is required for period-accurate builds. The Speedstar 64 line was Diamond Multimedia's entry- to mid-range ISA offering during this period, competing with similar cards from Trident, Cirrus Logic, and ATI in the ISA market segment before PCI graphics cards became standard.