Hardware Spec Index

Novexa HD-1821 Ultra 12TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Novexa · SKU HD1821-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index2,293 (Hard Drives scale)
Category rank#8,847
Street price$339
Power7 W
Performance per dollar6.76
Released2021

Specifications

BrandNovexa
ModelNovexa HD-1821 Ultra
Capacity12 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer240 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledYes
Warranty2 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Novexa HD-4617 Edge 20TB 7,200 RPM CMR NAS Hard Drive2,597$369Compare
Mirenta HD-2457 SE 6TB 5,400 RPM CMR Desktop Hard Drive1,473$149Compare
Novexa HD-7364 Ultra 12TB 7,200 RPM CMR Surveillance Hard Drive1,881$239Compare
Novexa HD-2171 Edge 6TB 5,400 RPM CMR Desktop Hard Drive1,272$119Compare
Strivon HD-2803 Pro 8TB 7,200 RPM CMR Desktop Hard Drive1,796$249Compare
Altrix HD-5509 Pro 4TB 5,400 RPM CMR Surveillance Hard Drive1,056$89Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Novexa HD-1821 Ultra 12TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/21391565 (accessed 2026-10-19).