Hardware Spec Index

Altrix HD-1921 SE 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD1921-SE · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index2,991 (Hard Drives scale)
Category rank#28,488
Street price$539
Power8 W
Performance per dollar5.55
Released2023

Specifications

BrandAltrix
ModelAltrix HD-1921 SE
Capacity20 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer280 MB/s
Workload rating300 TB/year
MTBF1.2 million hours
Helium-filledYes
Warranty3 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Novexa HD-5462 Edge 24TB 7,200 RPM CMR NAS Hard Drive2,866$499Compare
Novexa HD-6873 SE 28TB 7,200 RPM CMR Enterprise Hard Drive2,997$569Compare
Strivon HD-7008 Edge 20TB 7,200 RPM CMR Enterprise Hard Drive2,548$439Compare
Strivon HD-2455 Ultra 16TB 7,200 RPM CMR NAS Hard Drive2,636$359Compare
Novexa HD-9359 Plus 12TB 7,200 RPM CMR Desktop Hard Drive1,560$159Compare
Novexa HD-2607 Max 2TB 5,400 RPM SMR Desktop Hard Drive818$59Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-1921 SE 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/3853573 (accessed 2026-10-22).