Hardware Spec Index

Altrix HD-4635 Prime 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD4635-PRIME · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index2,669 (Hard Drives scale)
Category rank#12,820
Street price$419
Power8 W
Performance per dollar6.37
Released2026

Specifications

BrandAltrix
ModelAltrix HD-4635 Prime
Capacity20 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer280 MB/s
Workload rating300 TB/year
MTBF1.2 million hours
Helium-filledYes
Warranty3 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Mirenta HD-1719 SE 12TB 7,200 RPM CMR Desktop Hard Drive2,147$309Compare
Mirenta HD-7338 SE 4TB 5,400 RPM CMR Desktop Hard Drive1,034$79Compare
Strivon HD-8464 Ti 20TB 7,200 RPM CMR Enterprise Hard Drive2,636$439Compare
Altrix HD-4460 Max 8TB 7,200 RPM CMR Surveillance Hard Drive1,225$109Compare
Altrix HD-9003 Ti 12TB 7,200 RPM CMR NAS Hard Drive2,429$359Compare
Strivon HD-5385 Plus 4TB 5,400 RPM SMR Desktop Hard Drive1,337$139Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-4635 Prime 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/94552797 (accessed 2026-10-22).