| model number | 7.5 | 15.0 | 20.4 | 30.0 | |
| capacity | GB | 7.5 | 15.0 | 20.4 | 30.0 |
| buffer size | kB | 512 | 512 | 512 | 512 |
| heads | 1 | 2 | 3 | 4 | |
| areal density | MB/in2 | ||||
| track density | tpi | ||||
| recording density | kbpi | ||||
| average seek | ms | 12.00 | 12.00 | 12.00 | 12.00 |
| rotation speed | RPM | 4400 | 4400 | 4400 | 4400 |
| media rate (max.) | MB/s | 31.00 | 31.00 | 31.00 | 31.00 |