| General information |
|---|
| Trademark | Hitachi |
| Model | HDS728040PLAT20 |
| Capacity | 38.3 GB |
| Interface | PATA |
| Maximum Ultra DMA mode | 6 |
| Firmware | PF1OA21B |
| Firmware upgrade | supported |
| ATA version | 7 |
| Advanced Format | not supported |
| Units tested | 18 |
| Times tested | 68 |
| Performance |
|---|
| Maximum interface speed | 133 MB/s |
| Maximum buffered read speed | 123 MB/s |
| Maximum read speed | 57 MB/s |
| Minimum average access time | 12.50 msec |
| Cache buffer | 1.6 MB |
| Volatile write cache | supported |
| Read look-ahead | supported |
| Tagged command queuing (TCQ) | not supported |
| Advanced power management (APM) | supported |
| Acoustic management (AAM) | supported |
| Reliability |
|---|
| Count of sensors | 17 |
| Free-fall control | not supported |
| SMART command transport (SCT) | not supported |
| Full self-test time | 16 minutes |
| Maximum temperature | 75°C (167°F) |
| Average maximum temperature | 57°C (134°F) |
| Security |
|---|
| Drive access restriction | supported |
| Enhanced security erase | not supported |
| Data destruction time | 22 minutes |
| Instant data destruction | not supported |
| Host protected area (HPA) | supported |
| Host protected area password | supported |