Hardware Spec Index

Altrix HD-5521 Ultra 16TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD5521-ULTRA · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index2,608 (Hard Drives scale)
Category rank#23,657
Street price$459
Power7 W
Performance per dollar5.68
Released2023

Specifications

BrandAltrix
ModelAltrix HD-5521 Ultra
Capacity16 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer260 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
Strivon HD-5075 Core 12TB 7,200 RPM CMR NAS Hard Drive1,884$239Compare
Novexa HD-9418 Core 8TB 7,200 RPM CMR NAS Hard Drive1,582$179Compare
Altrix HD-6680 XT 2TB 5,400 RPM SMR Desktop Hard Drive898$69Compare
Mirenta HD-3613 Prime 24TB 7,200 RPM CMR NAS Hard Drive2,875$599Compare
Novexa HD-6480 Prime 4TB 5,400 RPM CMR Desktop Hard Drive961$69Compare
Novexa HD-9596 Max 4TB 5,400 RPM CMR Desktop Hard Drive1,067$89Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-5521 Ultra 16TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/7719863 (accessed 2026-10-22).