| model number | 6.8 | 10.2 | 13.6 | 20.5 | 27.3 | |
| capacity | GB | 6.8 | 10.3 | 13.7 | 20.5 | 27.4 |
| buffer size | kB | 512 | 512 | 512 | 512 | 512 |
| heads | 2 | 3 | 4 | 6 | 8 | |
| areal density | MB/in2 | 4760 | 4760 | 4760 | 4760 | 4760 |
| track density | tpi | 16700 | 16700 | 16700 | 16700 | 16700 |
| recording density | kbpi | 308 | 308 | 308 | 308 | 308 |
| average seek | ms | 8.50 | 8.50 | 8.50 | 8.50 | 8.50 |
| rotation speed | RPM | 7200 | 7200 | 7200 | 7200 | 7200 |
| media rate (max.) | MB/s | 29.38 | 29.38 | 29.38 | 29.38 | 29.38 |