vintage SIS 8-bit ISA Monochrome Graphics Adapter (MGP) Card Print Port Hercules For Sale

vintage SIS 8-bit ISA Monochrome Graphics Adapter (MGP) Card Print Port Hercules
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vintage SIS 8-bit ISA Monochrome Graphics Adapter (MGP) Card Print Port Hercules:
$58.99

vintage 8-bit ISA Monochrome Graphics Adapter (MGP) Video Card, commonly referred to as a Hercules-compatible graphics card with an integrated printer/parallel port interface.


Hardware Specifications


  • Primary Graphics Controller: Silicon Integrated Systems (SiS) 86C12, which serves as the core Hercules-compatible graphics controller.

  • Peripheral Controller: SiS 82C11, a specialized chip providing the Printer/Parallel Adapter Interface.

  • Memory & Storage: It utilizes onboard video RAM (specifically memory chips like the visible HM40321 or compatible RAM configurations) alongside a character generator ROM labeled SiS 23C01.

Interface: Designed for an 8-bit ISA expansion slot (the golden edge connector at the bottom) used in vintage IBM PC/XT and compatible computer systems.


External I/O Ports:


  • 1x DE-9 (9-pin) Female Port: For connecting to an MDA/Hercules-compatible monochrome display monitor.

  • 1x DB-25 (25-pin) Female Port: For connecting to a standard parallel printer interface.

Cards featuring this exact combination of components were produced by various manufacturers during the late 1980s and early 1990s as budget-friendly, highly integrated multi-I/O display options.

Shipping & Terms:


We understand the fragile nature of vintage silicon. This card will be securely wrapped in a premium anti-static bag and safely packaged in a sturdy box with ample bubble wrap to guarantee safe transit. Ships promptly with tracking provided via USPS.


  • Note: Due to the age and nature of vintage computing equipment, this item is sold as-is with no guarantee of functionality upon arrival.

  • Please ensure your motherboard has an available 8-bit ISA slot before purchasing, as modern PCs do not support this standard.
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Documentation