Hardware Spec Index

Altrix HD-1691 Pro 4TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD1691-PRO · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index1,441 (Hard Drives scale)
Category rank#24,900
Street price$129
Power5 W
Performance per dollar11.17
Released2019

Specifications

BrandAltrix
ModelAltrix HD-1691 Pro
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

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Novexa HD-7855 Core 6TB 5,400 RPM CMR Desktop Hard Drive1,148$89Compare
Novexa HD-2480 Pro 12TB 7,200 RPM SMR Desktop Hard Drive1,743$179Compare
Novexa HD-1762 Ultra 12TB 7,200 RPM CMR Surveillance Hard Drive1,632$189Compare
Altrix HD-5505 Ti 6TB 5,400 RPM SMR Desktop Hard Drive1,707$209Compare
Mirenta HD-3681 Ti 8TB 7,200 RPM CMR NAS Hard Drive1,781$249Compare
Mirenta HD-2823 Ti 8TB 7,200 RPM CMR Desktop Hard Drive2,196$289Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-1691 Pro 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/19972344 (accessed 2026-10-21).