Hardware Spec Index

Altrix HD-3847 SE 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD3847-SE · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index2,233 (Hard Drives scale)
Category rank#2,703
Street price$339
Power8 W
Performance per dollar6.59
Released2022

Specifications

BrandAltrix
ModelAltrix HD-3847 SE
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-9914 Ultra 12TB 7,200 RPM CMR Surveillance Hard Drive1,666$159Compare
Mirenta HD-6044 Plus 4TB 5,400 RPM CMR Surveillance Hard Drive1,060$89Compare
Altrix HD-4362 SE 24TB 7,200 RPM CMR Enterprise Hard Drive2,652$439Compare
Novexa HD-8620 Pro 8TB 7,200 RPM CMR NAS Hard Drive1,801$239Compare
Strivon HD-9367 Ultra 6TB 5,400 RPM SMR Desktop Hard Drive1,323$119Compare
Novexa HD-7330 Edge 2TB 5,400 RPM SMR Desktop Hard Drive632$59Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-3847 SE 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/7607044 (accessed 2026-10-22).