Mirenta HD-7921 Max 4TB 5,400 RPM CMR Surveillance Hard Drive
Hard Drives · Mirenta · SKU HD7921-MAX · Released 2023 · Updated 2026-10-22
Key facts
| Benchmark index | 1,119 (Hard Drives scale) |
|---|---|
| Category rank | #10,308 |
| Street price | $79 |
| Power | 5 W |
| Performance per dollar | 14.16 |
| Released | 2023 |
Specifications
| Brand | Mirenta |
|---|---|
| Model | Mirenta HD-7921 Max |
| Capacity | 4 TB |
| Class | Surveillance |
| Recording | CMR (conventional magnetic recording) |
| Spindle speed | 5,400 RPM |
| Cache | 256 MB |
| Interface | SATA 6 Gb/s |
| Sustained transfer | 180 MB/s |
| Workload rating | 180 TB/year |
| MTBF | 1 million hours |
| Helium-filled | No |
| Warranty | 2 years |
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Cite this page: Hardware Spec Index, “Mirenta HD-7921 Max 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/12945339 (accessed 2026-10-22).