Hardware Spec Index

Altrix HD-3521 Plus 12TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD3521-PLUS · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index2,518 (Hard Drives scale)
Category rank#46,886
Street price$369
Power7 W
Performance per dollar6.82
Released2022

Specifications

BrandAltrix
ModelAltrix HD-3521 Plus
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

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Cite this page: Hardware Spec Index, “Altrix HD-3521 Plus 12TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/9024786 (accessed 2026-10-23).