Hardware Spec Index

Altrix HD-9939 Ti 12TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD9939-TI · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index2,281 (Hard Drives scale)
Category rank#41,865
Street price$329
Power7 W
Performance per dollar6.93
Released2019

Specifications

BrandAltrix
ModelAltrix HD-9939 Ti
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

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Novexa HD-9493 XT 8TB 7,200 RPM CMR NAS Hard Drive2,016$299Compare
Strivon HD-1582 Plus 24TB 7,200 RPM CMR NAS Hard Drive2,477$379Compare
Strivon HD-1229 Max 6TB 5,400 RPM CMR Desktop Hard Drive1,086$69Compare
Novexa HD-6442 Ti 12TB 7,200 RPM CMR NAS Hard Drive1,595$159Compare
Altrix HD-5174 Plus 2TB 5,400 RPM CMR Surveillance Hard Drive788$59Compare
Altrix HD-4284 Max 6TB 5,400 RPM CMR NAS Hard Drive1,058$89Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-9939 Ti 12TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/10380935 (accessed 2026-10-22).