Hardware Spec Index

Mirenta HD-7821 Pro 8TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Mirenta · SKU HD7821-PRO · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index1,864 (Hard Drives scale)
Category rank#3,722
Street price$249
Power6 W
Performance per dollar7.49
Released2022

Specifications

BrandMirenta
ModelMirenta HD-7821 Pro
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

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Mirenta HD-9911 XT 8TB 7,200 RPM CMR Surveillance Hard Drive1,925$269Compare
Mirenta HD-8393 Pro 24TB 7,200 RPM CMR NAS Hard Drive2,794$499Compare
Novexa HD-5074 Prime 24TB 7,200 RPM CMR Enterprise Hard Drive3,100$589Compare
Altrix HD-1385 Ultra 24TB 7,200 RPM CMR NAS Hard Drive2,680$409Compare
Altrix HD-1169 SE 16TB 7,200 RPM CMR Enterprise Hard Drive1,736$219Compare
Mirenta HD-2051 Max 4TB 5,400 RPM SMR Desktop Hard Drive1,129$89Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-7821 Pro 8TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/57452 (accessed 2026-10-19).