Hardware Spec Index

Mirenta HD-3947 Ti 8TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Mirenta · SKU HD3947-TI · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index1,293 (Hard Drives scale)
Category rank#2,333
Street price$119
Power6 W
Performance per dollar10.87
Released2021

Specifications

BrandMirenta
ModelMirenta HD-3947 Ti
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-3947 Ti 8TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/7569448 (accessed 2026-10-22).