Description
Western Digital WD1006V-MM1 61-600194-02 ISA MFM/RLL Winchester Controller Card
The Western Digital WD1006V-MM1 is an ISA-bus hard disk and floppy drive controller card designed for IBM PC/XT/AT-class computers and compatibles. It supports both MFM (Modified Frequency Modulation) and RLL (Run-Length Limited) Winchester hard drives alongside floppy drive control, making it a combined storage controller on a single ISA card. This example carries part number 61-600194-02, revision F002 X4, and was manufactured in Ireland in 1989 (date code 8922).
Specifications & What's Included
- Manufacturer: Western Digital
- Model: WD1006V-MM1
- Part Number: 61-600194-02
- Revision: F002 X4
- Bus Interface: ISA (16-bit, full-length card)
- Supported Drive Types: MFM and RLL Winchester (hard disk) + Floppy
- On-board headers labeled: LED, Drive 0, Drive 1, Winchester, Floppy
- Country of Manufacture: Ireland
- Date Code: 8922 (22nd week of 1989)
- Includes: Controller card only — cables not included
Applications
The WD1006 series was one of Western Digital's most widely used hard disk controller cards of the late 1980s, found in IBM PC/AT-compatible systems built around the ISA bus. These cards interfaced MFM and RLL hard drives — the dominant storage technology before IDE/ATA took over in the early 1990s — with the host system via a standardized 34-pin control cable and 20-pin data cable. RLL encoding offered roughly 50% more storage capacity than MFM from the same physical drive, and controllers like the WD1006V-MM1 were a popular upgrade path for users wanting to maximize capacity on existing drives. Today these cards are sought after by vintage computer enthusiasts and restorers maintaining period-correct IBM AT-compatible systems, as well as collectors working with early PC hardware. Compatible with any ISA-bus PC/XT/AT or clone that requires a WD1006-series or equivalent MFM/RLL hard disk controller.
This Western Digital WD1006V-MM1 ISA MFM/RLL Winchester controller card has been inspected and is in good condition. The PCB is clean with no visible cracks or burnt components, and the ISA edge connector contacts appear intact. Normal light handling wear is present consistent with a card of this vintage (1989). Please review our photos and contact us with any questions.
Warranty Information
Additional Information
Brand: |
Western Digital |
Model: |
WD1006V-MM1 |
MPN: |
61-600194-02 |
Secondary Model: |
F002 X4 |
SKU: |
40860 |
Type: |
ISA MFM/RLL Hard Disk & Floppy Controller Card |
Interface: |
ISA (16-bit) |
Compatible Drive Types: |
MFM, RLL (Winchester), Floppy |
Form Factor: |
ISA Full-Length Card |
Country/Region of Manufacture: |
Ireland |
Compatible With: |
IBM PC/XT/AT and compatibles with ISA bus |
Seller Notes: |
Card only; no cables included. Inspected and in good condition. |
Date Code: |
8922 (22nd week of 1989) |
Condition Notes: |
This Western Digital WD1006V-MM1 ISA MFM/RLL controller card (P/N 61-600194-02) has been inspected and is in good condition. PCB is clean, edge connector contacts intact, normal vintage wear. Please contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
