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UMC UM6845R CGA MDA 8-Bit ISA Video Card IBM PC XT Full Length Taiwan
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UMC UM6845R CGA MDA 8-Bit ISA Video Card IBM PC XT Full Length Taiwan
Price: US $49.95

vintage 8-bit ISA CGA/MDA video card built around the UMC UM6845R CRT controller chip — a sought-after early IBM PC/XT-era display adapter made in Taiwan, circa 1983–1985. PCB is marked SM-143.


This is a full-length ISA card featuring dual video outputs (9-pin D-sub CGA output plus RCA/composite jacks), a parallel port bracket, and a 16 MHz crystal oscillator (CK1100A). Key chips visible include the UMC UM6845R (Motorola 6845-compatible CRT controller), UM2301 support chip, and Toshiba TMM2116AP-10 DRAM.


This card is known to collectors as the "Precise 445" — a relatively uncommon UMC-manufactured CGA/MDA-compatible adapter identified and documented at vgamuseum.info. It differs from the common IBM CGA clone by its UMC chipset and additional composite/light pen port capability.


This card came from an estate collection and is being sold untested, as-is. It appears complete and shows no obvious physical damage — connector fingers are present and the board is intact. No testing equipment is available to verify function.

Compatible with: IBM PC 5150, IBM PC XT 5160, and 8088/8086-based IBM PC/XT clones with 8-bit ISA slots.


What you get: The card only. No cables, no software, no documentation.


Condition: Used, estate find. Untested/as-is. Please see all photos


Shipping: Will be packed carefully



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