Hardware Spec Index

Mirenta HD-8640 Plus 20TB 7,200 RPM CMR Enterprise Hard Drive

Hard Drives · Mirenta · SKU HD8640-PLUS · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index2,902 (Hard Drives scale)
Category rank#30,978
Street price$449
Power8 W
Performance per dollar6.46
Released2023

Specifications

BrandMirenta
ModelMirenta HD-8640 Plus
Capacity20 TB
ClassEnterprise
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSAS 12 Gb/s
Sustained transfer280 MB/s
Workload rating550 TB/year
MTBF2.5 million hours
Helium-filledYes
Warranty5 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Novexa HD-4021 Prime 6TB 5,400 RPM CMR Surveillance Hard Drive1,925$199Compare
Mirenta HD-8308 Plus 2TB 5,400 RPM CMR Surveillance Hard Drive929$69Compare
Novexa HD-2224 Ti 8TB 7,200 RPM CMR Desktop Hard Drive1,524$149Compare
Altrix HD-4778 Ti 12TB 7,200 RPM CMR Surveillance Hard Drive2,167$279Compare
Mirenta HD-6637 Edge 8TB 7,200 RPM SMR Desktop Hard Drive2,088$279Compare
Strivon HD-1914 Pro 16TB 7,200 RPM CMR Enterprise Hard Drive2,058$289Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-8640 Plus 20TB 7,200 RPM CMR Enterprise Hard Drive”, https://vextor7.com/item/46988901 (accessed 2026-10-21).