Hardware Spec Index

Altrix HD-8521 SE 12TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD8521-SE · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index2,280 (Hard Drives scale)
Category rank#38,856
Street price$369
Power7 W
Performance per dollar6.18
Released2019

Specifications

BrandAltrix
ModelAltrix HD-8521 SE
Capacity12 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer240 MB/s
Workload rating300 TB/year
MTBF1.2 million hours
Helium-filledYes
Warranty3 years

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Cite this page: Hardware Spec Index, “Altrix HD-8521 SE 12TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/580064 (accessed 2026-10-22).