Hardware Spec Index

Altrix HD-9856 Ultra 12TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD9856-ULTRA · Released 2023 · Updated 2026-10-18

Key facts

Benchmark index2,332 (Hard Drives scale)
Category rank#8,617
Street price$339
Power7 W
Performance per dollar6.88
Released2023

Specifications

BrandAltrix
ModelAltrix HD-9856 Ultra
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
Altrix HD-9196 Core 12TB 7,200 RPM SMR Desktop Hard Drive1,719$189Compare
Altrix HD-7356 XT 24TB 7,200 RPM CMR Enterprise Hard Drive2,905$509Compare
Strivon HD-6299 Ti 4TB 5,400 RPM CMR Surveillance Hard Drive791$59Compare
Mirenta HD-7109 XT 2TB 5,400 RPM SMR Desktop Hard Drive652$49Compare
Strivon HD-3424 Prime 2TB 5,400 RPM SMR Desktop Hard Drive785$59Compare
Altrix HD-8255 Edge 16TB 7,200 RPM CMR Enterprise Hard Drive2,388$319Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-9856 Ultra 12TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/9071981 (accessed 2026-10-18).