Item Description:
Up for sale is a vintage, legacy 16-bit ISA Multi-I/O and Disk Controller card, manufactured in Taiwan R.O.C. around late 1988 (based on component date codes). This expansion card is ideal for retro PC restoration projects (such as 286, 386, or 486 computer builds) requiring standard floppy and hard drive connectivity.Key Features & Onboard Hardware:
- Bus Interface: 16-bit ISA edge connector with clean gold contacts.
- Drive Support: Onboard pin headers clearly labeled for "FLOPPY DISK" and "EMBEDDED HARD DISK" (IDE/ATA standard layout).
- External Interfaces: Built-in rear expansion bracket hosting a DB9 Serial (COM1) port and a DB25 Parallel Printer (LPT) port. Internal headers are available for expanding to an additional COM2 port.
- Onboard Logic: Features a high-quality Western Digital WD37C65BJM floppy controller chip, a Koyo KCO-010T 16.000 MHz crystal oscillator, and a 10-position configuration DIP switch block mapping to legacy port selection (SWCOM12, DISCOM1, DISCOM2, DISPRI, PRT12, LPT2, LPT1, FDEN, HDEN).
- PCB Markings: Labeled "ET43" on the front and stamped "A51 94V-0 8852" on the back.Condition:
Cosmetically in excellent vintage condition with no missing components, deep scratches, or blown capacitors. The board looks remarkably clean and well-kept. This item is sold UNTESTED due to a lack of compatible vintage test hardware. Sold strictly AS-IS for parts, repair, collection, or retro builds.
