Hardware Spec Index

Altrix HD-3991 Max 4TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD3991-MAX · Released 2023 · Updated 2026-10-18

Key facts

Benchmark index1,336 (Hard Drives scale)
Category rank#33,142
Street price$99
Power5 W
Performance per dollar13.49
Released2023

Specifications

BrandAltrix
ModelAltrix HD-3991 Max
Capacity4 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed5,400 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer180 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledNo
Warranty2 years

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Cite this page: Hardware Spec Index, “Altrix HD-3991 Max 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/20003632 (accessed 2026-10-18).