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Apple 661-0287 Unidisk Analog CD Card 820-0190-A 5.25" Drive Controller 1986
Apple 661-0287 Unidisk Analog CD Card 820-0190-A 5.25" Drive Controller 1986
Controller card for Apple Unidisk 5.25" floppy drives. Connects via DB-25 edge connector using analog floppy drive interface protocol.
Specifications & What's Included
- Model: Apple 661-0287 / Secondary Model: 820-0190-A
- Type: Unidisk Analog CD Controller Card
- Connector: DB-25 edge connector (D-sub)
- Interface: Analog floppy drive interface
- Manufactured: 1986, USA
- Includes: Original Apple service shipping box
Applications
Used in Apple II systems (IIe, IIc compatible models) to control Unidisk 5.25" external floppy drives. This card type facilitated data transfer between computers and external storage during the 1980s Apple II era. Fits into computer expansion slots to provide drive control and protocol management.
Condition: Used
This Apple 661-0287 Unidisk Analog CD Card (820-0190-A) came to us in its original Apple service shipping box, labeled "661-0287 / UNIDISK ANALOG CD / QTY: 1 / APPLE SERVICE." We inspected the card and it appears to be in good condition — the PCB is clean with no obvious damage, broken traces, or missing components visible. We have no way to test this card, so it is sold as-inspected with no functionality guarantee. The box shows age-related wear typical of decades of storage. A rare vintage 1986 Apple service part. Please view our photo set and contact us if you have any questions. Visit Our Store
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