Hardware Spec Index

Altrix HD-9547 Pro 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD9547-PRO · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index2,549 (Hard Drives scale)
Category rank#46,370
Street price$419
Power8 W
Performance per dollar6.08
Released2019

Specifications

BrandAltrix
ModelAltrix HD-9547 Pro
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
Altrix HD-2354 Prime 24TB 7,200 RPM CMR Enterprise Hard Drive2,296$349Compare
Novexa HD-9779 XT 4TB 5,400 RPM CMR Surveillance Hard Drive691$59Compare
Altrix HD-9307 Prime 12TB 7,200 RPM CMR NAS Hard Drive2,023$239Compare
Strivon HD-2337 Core 12TB 7,200 RPM CMR Surveillance Hard Drive2,146$349Compare
Strivon HD-7222 Ultra 4TB 5,400 RPM SMR Desktop Hard Drive1,085$89Compare
Altrix HD-6844 Ultra 6TB 5,400 RPM CMR NAS Hard Drive1,274$119Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-9547 Pro 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/21538656 (accessed 2026-10-26).