| Pin | Signal | Description |
|---|---|---|
| 1-2 | Clamp | Connector Clamp |
| 3-4 | Spare | |
| 5-6 | NDS3 | Select 3 |
| 7-8 | NINDEX/SECTOR | Index |
| 9-10 | NDS0 | Select 0 |
| 11-12 | NDS1 | Select 1 |
| 13-14 | NDS2 | Select 2 |
| 15-16 | NMOTORON | Drive Motor Enable |
| 17-18 | DIR | Direction |
| 19-20 | NSTEP | Step |
| 21-22 | NWRITEDATA | Write Data |
| 23-24 | NWRITEGATE | Write gate |
| 25-26 | NTRK00 | Track 00 |
| 27-28 | NWRITEPROTECT | Write Protect |
| 29-30 | NREADDATA | Read Data |
| 31-32 | NSLIDESELECT | Side Select |
| 33-34 | CLAMP | Connector Clamp |