Hardware Spec Index

Altrix HD-3491 Core 20TB 7,200 RPM CMR Enterprise Hard Drive

Hard Drives · Altrix · SKU HD3491-CORE · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index2,285 (Hard Drives scale)
Category rank#2,073
Street price$379
Power8 W
Performance per dollar6.03
Released2023

Specifications

BrandAltrix
ModelAltrix HD-3491 Core
Capacity20 TB
ClassEnterprise
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSAS 12 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-1079 SE 8TB 7,200 RPM CMR Desktop Hard Drive1,387$109Compare
Mirenta HD-4805 Prime 20TB 7,200 RPM CMR Enterprise Hard Drive2,522$439Compare
Altrix HD-1106 Plus 2TB 5,400 RPM SMR Desktop Hard Drive844$59Compare
Novexa HD-5940 Core 12TB 7,200 RPM CMR Surveillance Hard Drive2,117$309Compare
Altrix HD-8757 Max 8TB 7,200 RPM CMR Surveillance Hard Drive1,642$159Compare
Altrix HD-1254 Edge 20TB 7,200 RPM CMR NAS Hard Drive2,938$539Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-3491 Core 20TB 7,200 RPM CMR Enterprise Hard Drive”, https://vextor7.com/item/5111634 (accessed 2026-10-19).