Hardware Spec Index

Mirenta HD-7921 Core 4TB 5,400 RPM SMR Desktop Hard Drive

Hard Drives · Mirenta · SKU HD7921-CORE · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index1,189 (Hard Drives scale)
Category rank#33,111
Street price$109
Power5 W
Performance per dollar10.91
Released2019

Specifications

BrandMirenta
ModelMirenta HD-7921 Core
Capacity4 TB
ClassDesktop
RecordingSMR (shingled magnetic recording)
Spindle speed5,400 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer180 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-7921 Core 4TB 5,400 RPM SMR Desktop Hard Drive”, https://vextor7.com/item/8522240 (accessed 2026-10-23).