| General information |
|---|
| Trademark | Kioxia |
| Model | KBG40ZNS256G NVMe TOSHIBA 256GB |
| Capacity | 238.4 GB |
| Interface | NVMe |
| NVMe version | 1.3 |
| Firmware | 10410101 |
| Firmware upgrade | supported |
| Maximum power consumption | 3 W |
| Advanced Format | supported |
| Units tested | 1 |
| Times tested | 1 |
| Performance |
|---|
| Maximum interface speed | 3940 MB/s (PCIe 3.0 x4) |
| Maximum buffered read speed | 683 MB/s |
| Maximum read speed | 441 MB/s |
| Minimum average access time | 0.20 msec |
| TRIM | supported |
| Host memory buffer (HMB) | supported (61 MB) |
| Throttling temperature control | supported |
| Reliability |
|---|
| Duration of full self test | 11 minutes |
| Critical maximum temperature | 86°C (186°F) |
| Recommended maximum temperature | 82°C (179°F) |
| Maximum temperature | 45°C (113°F) |
| Average maximum temperature | 45°C (113°F) |
| Security |
|---|
| Drive access restriction | supported |
| Instant data destruction | not supported |