Hardware Spec Index

Altrix HD-1991 SE 4TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD1991-SE · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index875 (Hard Drives scale)
Category rank#45,415
Street price$59
Power5 W
Performance per dollar14.83
Released2021

Specifications

BrandAltrix
ModelAltrix HD-1991 SE
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
Strivon HD-2405 XT 20TB 7,200 RPM CMR Enterprise Hard Drive2,394$389Compare
Altrix HD-2030 Edge 12TB 7,200 RPM CMR Surveillance Hard Drive1,860$209Compare
Altrix HD-4622 Pro 2TB 5,400 RPM CMR Surveillance Hard Drive837$59Compare
Novexa HD-5261 Pro 12TB 7,200 RPM CMR NAS Hard Drive1,469$139Compare
Mirenta HD-3043 Edge 20TB 7,200 RPM CMR NAS Hard Drive2,377$379Compare
Mirenta HD-7655 Max 20TB 7,200 RPM CMR Enterprise Hard Drive2,101$249Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-1991 SE 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/74550949 (accessed 2026-10-24).