Hardware Spec Index

Mirenta HD-4821 Pro 20TB 7,200 RPM CMR Enterprise Hard Drive

Hard Drives · Mirenta · SKU HD4821-PRO · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index2,253 (Hard Drives scale)
Category rank#47,936
Street price$329
Power8 W
Performance per dollar6.85
Released2025

Specifications

BrandMirenta
ModelMirenta HD-4821 Pro
Capacity20 TB
ClassEnterprise
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 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
Strivon HD-3952 SE 2TB 5,400 RPM SMR Desktop Hard Drive1,016$79Compare
Mirenta HD-2883 Edge 24TB 7,200 RPM CMR NAS Hard Drive3,097$599Compare
Novexa HD-3725 Pro 20TB 7,200 RPM CMR Enterprise Hard Drive2,140$289Compare
Strivon HD-3931 Pro 2TB 5,400 RPM SMR Desktop Hard Drive991$79Compare
Mirenta HD-5929 Pro 8TB 7,200 RPM CMR NAS Hard Drive1,361$109Compare
Mirenta HD-4360 Edge 12TB 7,200 RPM CMR Desktop Hard Drive1,588$169Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-4821 Pro 20TB 7,200 RPM CMR Enterprise Hard Drive”, https://vextor7.com/item/21496741 (accessed 2026-10-22).