Hardware Spec Index

Novexa HD-3821 SE 20TB 7,200 RPM CMR Enterprise Hard Drive

Hard Drives · Novexa · SKU HD3821-SE · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index2,732 (Hard Drives scale)
Category rank#2,322
Street price$529
Power8 W
Performance per dollar5.16
Released2021

Specifications

BrandNovexa
ModelNovexa HD-3821 SE
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
Novexa HD-2031 Prime 24TB 7,200 RPM CMR Enterprise Hard Drive3,029$509Compare
Mirenta HD-5420 Plus 28TB 7,200 RPM CMR NAS Hard Drive3,057$599Compare
Strivon HD-3998 Pro 8TB 7,200 RPM CMR NAS Hard Drive2,035$319Compare
Novexa HD-2411 Prime 2TB 5,400 RPM SMR Desktop Hard Drive1,217$89Compare
Novexa HD-4351 Ti 24TB 7,200 RPM CMR NAS Hard Drive3,003$509Compare
Mirenta HD-7276 SE 2TB 5,400 RPM CMR Surveillance Hard Drive1,169$99Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Novexa HD-3821 SE 20TB 7,200 RPM CMR Enterprise Hard Drive”, https://vextor7.com/item/76526262 (accessed 2026-10-25).