| Model | 3425 |
| Heads | 4 |
| Cylinders | 615 |
| Sectors | 17 |
| Landing Zone | 0 |
| Write Precomp | 128 |
| Reduced Write Current | 616 |
| Capacity | 20 MB |
| Rotational Speed | 0 RPM |
| Physical Interface | 20 Pin and 34 Pin |
| Protocol | MFM |
Miniscribe
1006
1012
2006
2012
3012
3053
3085
3130E
3130S
3180E
3180S
3212
3412
3425
3425P
3438
3438P
3650
3650R
3675
4010
4020
6032
6053
6079
6085
6128
7080AT
8051A
8212
8225
8225XT
8412
8425
8425F
8425S
8425XT
8438
8450
9380E
9380S
9780E
9780S