Overview
This vintage unbranded ISA floppy disk controller card is a classic expansion card designed for XT and AT-class computer systems from the 1980s and early 1990s. The card interfaces with the ISA (Industry Standard Architecture) bus and controls one or more floppy disk drives via a standard 34-pin ribbon cable connector. Perfect for system restoration, retro computing builds, and historical computing collections.
Key Features
- ISA bus interface for XT/AT and compatible computer systems
- Standard 34-pin ribbon cable connector for floppy drive connection
- Supports multiple 3.5″ and 5.25″ floppy drive formats
- Direct Memory Access (DMA) and IRQ control for drive operation
- Compact edge-connector design for standard ISA slots
- Fully functional vintage design suitable for retro computing restoration
Technical Specifications
- Bus Interface: Industry Standard Architecture (ISA) 16-bit
- Drive Connector: 34-pin header/edge connector
- Compatible Systems: IBM PC, PC/XT, AT, and compatible systems
- Supported Drive Formats: 160K, 320K, 360K, 720K, 1.2MB, 1.44MB, and higher
- DMA Channel: DMA channel 2
- IRQ Assignment: IRQ 6
- Mounting: Standard ISA slot edge connector
- Operating Voltage: +5V and +12V (standard ISA supply)
- Condition: New, open box
Typical Applications
- IBM PC/XT/AT floppy drive restoration and repair
- Retro computing system builds and upgrades
- Tandy 1000 and compatible system restoration
- Vintage computer collections and museum exhibits
- DOS-era computing preservation projects
- Legacy software testing and archival on period hardware
Compatibility & Replacements
Compatible With
- IBM PC, PC/XT, and PC/AT systems
- Tandy 1000 and compatible computers
- Any system with available ISA slot and +5V/+12V power
- Standard 34-pin floppy drive ribbon cables
- 3.5″ and 5.25″ floppy drives (360K through 2.88MB capacities)
Replaces / Drop-In Replacement For
- OEM floppy controllers in XT/AT systems
- Failed or damaged floppy controller cards in vintage systems
- Generic unbranded ISA floppy controller replacements
Works With
- Original IBM floppy drive connectors and cable standards
- MS-DOS 3.x through 6.x operating systems
- PC-DOS and compatible operating systems
- Legacy BIOS firmware with standard floppy controller support
