Hardware Spec Index

Mirenta HD-8521 Ultra 6TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Mirenta · SKU HD8521-ULTRA · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index1,476 (Hard Drives scale)
Category rank#46,264
Street price$159
Power5 W
Performance per dollar9.28
Released2024

Specifications

BrandMirenta
ModelMirenta HD-8521 Ultra
Capacity6 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed5,400 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer190 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledNo
Warranty2 years

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Cite this page: Hardware Spec Index, “Mirenta HD-8521 Ultra 6TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/21785565 (accessed 2026-10-25).