| model number | 92048U8 | 91792U7 | 91536U6 | 91280U5 | 91024U4 | 90750U3 | |
| capacity | GB | 20.5 | 17.9 | 15.4 | 12.8 | 10.2 | 7.7 |
| buffer size | kB | 512 | 512 | 512 | 512 | 512 | 512 |
| heads | 8 | 7 | 6 | 5 | 4 | 3 | |
| areal density | MB/in2 | 3800 | 3800 | 3800 | 3800 | 3800 | 3800 |
| track density | tpi | 14522 | 14522 | 14522 | 14522 | 14522 | 14522 |
| recording density | kbpi | 204 - 255 | 204 - 255 | 204 - 255 | 204 - 255 | 204 - 255 | 204 - 255 |
| average seek | ms | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 |
| rotation speed | RPM | 7200 | 7200 | 7200 | 7200 | 7200 | 7200 |
| media rate (max.) | MB/s | 31.20 | 31.20 | 31.20 | 31.20 | 31.20 | 31.20 |