| Item # | 884797 |
| brand name | Promise |
| Cache / Buffer Size (Max) | 512 MB |
| depth | 9.3 in. |
| Drive Interface | Serial ATA |
| Environmental Certification | RoHS |
| Hard Drive RPM | 7200 |
| Host Interface | Thunderbolt |
| manufacturer | PROMISE TECHNOLOGY |
| model | PR401US |
| Number of Hard Drives Installed | 4 |
| Number of Hard Drives Supported | 4 |
| Number of Total Expansion Bays | 4 |
| Product Line | PEGASUS |
| Product Series | R4 |
| RAID Levels | 0, 1, 5, 6, 10 |
| RAID Levels (SDE) | 0; 1; 5; 6; 10 |
| Total Hard Drive Capacity Installed | 4 TB |
| warranty length | 2-year limited |
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