| General information |
|---|
| Trademark | Samsung |
| Model | SAMSUNG HD642JJ |
| Capacity | 596.1 GB |
| Interface | SATA |
| Firmware | 1AA01117 |
| Alternative firmwares | 7 |
| Firmware upgrade | supported |
| ATA version | 7 |
| Advanced Format | not supported |
| Units tested | 7 |
| Times tested | 18 |
| Performance |
|---|
| Maximum interface speed | 300 MB/s |
| Maximum buffered read speed | 233 MB/s |
| Maximum read speed | 119 MB/s |
| Minimum average access time | 13.87 msec |
| Cache buffer | 16 MB |
| Volatile write cache | supported |
| Read look-ahead | supported |
| Native command queuing (NCQ) | supported |
| Advanced power management (APM) | supported |
| Acoustic management (AAM) | supported |
| Reliability |
|---|
| Count of sensors | 24 |
| Free-fall control | not supported |
| SMART command transport (SCT) | supported |
| Full self-test time | 133 minutes |
| Maximum temperature | 63°C (145°F) |
| Average maximum temperature | 45°C (113°F) |
| Security |
|---|
| Drive access restriction | supported |
| Enhanced security erase | supported |
| Data destruction time | 118 minutes |
| Instant data destruction | not supported |
| Host protected area (HPA) | supported |
| Host protected area password | supported |
| Trusted computing | not supported |