Hardware Spec Index

Mirenta HD-3781 Ultra 8TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Mirenta · SKU HD3781-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,737 (Hard Drives scale)
Category rank#6,423
Street price$169
Power6 W
Performance per dollar10.28
Released2021

Specifications

BrandMirenta
ModelMirenta HD-3781 Ultra
Capacity8 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer220 MB/s
Workload rating300 TB/year
MTBF1.2 million hours
Helium-filledNo
Warranty3 years

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Cite this page: Hardware Spec Index, “Mirenta HD-3781 Ultra 8TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/11797193 (accessed 2026-10-20).