Hardware Spec Index

Altrix HD-6991 Pro 4TB 5,400 RPM SMR Desktop Hard Drive

Hard Drives · Altrix · SKU HD6991-PRO · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index1,294 (Hard Drives scale)
Category rank#45,747
Street price$109
Power5 W
Performance per dollar11.87
Released2024

Specifications

BrandAltrix
ModelAltrix HD-6991 Pro
Capacity4 TB
ClassDesktop
RecordingSMR (shingled 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-3189 Plus 20TB 7,200 RPM CMR NAS Hard Drive2,656$449Compare
Altrix HD-9118 Edge 12TB 7,200 RPM CMR NAS Hard Drive2,241$329Compare
Altrix HD-7109 Max 4TB 5,400 RPM SMR Desktop Hard Drive1,397$139Compare
Altrix HD-1469 XT 12TB 7,200 RPM CMR NAS Hard Drive1,809$249Compare
Altrix HD-3030 Plus 20TB 7,200 RPM CMR Enterprise Hard Drive3,096$569Compare
Mirenta HD-5303 Plus 8TB 7,200 RPM CMR Surveillance Hard Drive1,637$159Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-6991 Pro 4TB 5,400 RPM SMR Desktop Hard Drive”, https://vextor7.com/item/932172 (accessed 2026-10-25).