| model number | ST36810A | ST310220A | ST313620A | ST320430A | ST327240A | ST328040A | |
| capacity | GB | 6.8 | 10.2 | 13.6 | 20.4 | 27.2 | 28.0 |
| buffer size | kB | 512 | 512 | 512 | 512 | 512 | 512 |
| heads | 2 | 3 | 4 | 6 | 8 | 8 | |
| areal density | MB/in2 | ||||||
| track density | tpi | ||||||
| recording density | kbpi | ||||||
| average seek | ms | 7.60 | 7.60 | 7.60 | 7.60 | 8.00 | 8.00 |
| rotation speed | RPM | 7200 | 7200 | 7200 | 7200 | 7200 | 7200 |
| media rate (max.) | MB/s | 40.38 | 40.38 | 40.38 | 40.38 | 40.38 | 40.38 |