Hardware Spec Index

Altrix HD-3685 Plus 4TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD3685-PLUS · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index957 (Hard Drives scale)
Category rank#18,875
Street price$69
Power5 W
Performance per dollar13.87
Released2021

Specifications

BrandAltrix
ModelAltrix HD-3685 Plus
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-3685 Plus 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/77795072 (accessed 2026-10-26).