| Storage drive size | 2.5/3.5" |
| Supported storage drive interfaces | Serial ATA II |
| Number of storage drives supported | 4 |
| RAID levels | 0, 1, 5, 10, JBOD |
| Hot-swap | Yes |
| USB connectivity | Yes |
| USB version | 3.2 Gen 1 (3.1 Gen 1) |
| USB connector type | USB Type-C |
| USB connector gender | Female |
| USB ports quantity | 1 |
| Product type | HDD/SSD enclosure |
| Product colour | Black |
| Number of fans | 1 fan(s) |
| Fan diameter | 12 cm |
| Number of 3.5" bays | 4 |
| Data transfer rate | 3 Gbit/s |
| Noise level | 18.1 dB |
| Country of origin | Taiwan |
| Power source type | AC |
| External power adapter | Yes |
| AC adapter input voltage | 100 - 240 V |
| Operating temperature (T-T) | 0 - 40 °C |
| Storage temperature (T-T) | -20 - 70 °C |
| Operating relative humidity (H-H) | 5 - 95% |
| Width | 160.2 mm |
| Depth | 219 mm |
| Height | 168.5 mm |
| Weight | 1.85 kg |
| AC adapter included | Yes |
| Cables included | AC, USB Type-A to USB Type-C |
| Screws included | Yes |
| Quick installation guide | Yes |
| Host interface | 1 x USB 3.2 Gen 1 Type-C |
| Harmonized System (HS) code | 84733080 |
| Description |
| QNAP TR-004. Product type: HDD/SSD enclosure. Number of storage drives supported: 4, Storage drive size: 2.5/3.5", Supported storage drive interfaces: Serial ATA II. Data transfer rate: 3 Gbit/s. RAID levels: 0, 1, 5, 10, JBOD, Hot-swap. Product colour: Black. USB connector type: USB Type-C |