Hardware Spec Index

Mirenta HD-3640 Ultra 8TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Mirenta · SKU HD3640-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index2,240 (Hard Drives scale)
Category rank#40,127
Street price$259
Power6 W
Performance per dollar8.65
Released2021

Specifications

BrandMirenta
ModelMirenta HD-3640 Ultra
Capacity8 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer220 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-3640 Ultra 8TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/5752097 (accessed 2026-10-25).