| model number | 92041U4 | 91531U3 | 91021U2 | |
| capacity | GB | 20.5 | 15.4 | 10.2 |
| buffer size | kB | 512 | 512 | 512 |
| heads | 4 | 3 | 2 | |
| areal density | MB/in2 | 7200 | 7200 | 7200 |
| track density | tpi | 19700 | 19700 | 19700 |
| recording density | kbpi | 298 - 354 | 298 - 354 | 298 - 354 |
| average seek | ms | 9.50 | 9.50 | 9.50 |
| rotation speed | RPM | 5400 | 5400 | 5400 |
| media rate (max.) | MB/s | 36.90 | 36.90 | 36.90 |