Hardware Spec Index

Altrix HD-6921 Ultra 8TB 7,200 RPM SMR Desktop Hard Drive

Hard Drives · Altrix · SKU HD6921-ULTRA · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index1,280 (Hard Drives scale)
Category rank#13,564
Street price$109
Power6 W
Performance per dollar11.74
Released2022

Specifications

BrandAltrix
ModelAltrix HD-6921 Ultra
Capacity8 TB
ClassDesktop
RecordingSMR (shingled magnetic recording)
Spindle speed7,200 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer220 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
Mirenta HD-7987 Plus 4TB 5,400 RPM CMR Desktop Hard Drive1,360$109Compare
Novexa HD-7578 Ultra 6TB 5,400 RPM CMR Surveillance Hard Drive1,713$189Compare
Novexa HD-7761 XT 8TB 7,200 RPM CMR Surveillance Hard Drive2,004$249Compare
Novexa HD-4884 Max 6TB 5,400 RPM CMR Surveillance Hard Drive965$69Compare
Altrix HD-6072 Core 24TB 7,200 RPM CMR Enterprise Hard Drive2,290$389Compare
Novexa HD-6513 Plus 20TB 7,200 RPM CMR NAS Hard Drive2,722$449Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-6921 Ultra 8TB 7,200 RPM SMR Desktop Hard Drive”, https://vextor7.com/item/46431026 (accessed 2026-10-26).