Hardware Spec Index

Altrix HD-8921 SE 12TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD8921-SE · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index1,867 (Hard Drives scale)
Category rank#16,510
Street price$209
Power7 W
Performance per dollar8.93
Released2020

Specifications

BrandAltrix
ModelAltrix HD-8921 SE
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

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Strivon HD-4550 XT 12TB 7,200 RPM SMR Desktop Hard Drive2,154$329Compare
Altrix HD-4268 Prime 6TB 5,400 RPM CMR NAS Hard Drive1,615$169Compare
Mirenta HD-4001 Max 12TB 7,200 RPM CMR Surveillance Hard Drive1,673$179Compare
Strivon HD-6047 Pro 6TB 5,400 RPM CMR Surveillance Hard Drive1,333$99Compare
Novexa HD-7822 Core 24TB 7,200 RPM CMR NAS Hard Drive2,679$489Compare
Strivon HD-3437 Ti 4TB 5,400 RPM SMR Desktop Hard Drive672$49Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-8921 SE 12TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/48755995 (accessed 2026-10-20).