Hardware Spec Index

Altrix HD-9939 XT 8TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD9939-XT · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index1,489 (Hard Drives scale)
Category rank#29,788
Street price$149
Power6 W
Performance per dollar9.99
Released2021

Specifications

BrandAltrix
ModelAltrix HD-9939 XT
Capacity8 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer220 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledNo
Warranty2 years

Related guides

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Cite this page: Hardware Spec Index, “Altrix HD-9939 XT 8TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/18680933 (accessed 2026-10-25).