Hardware Spec Index

Altrix HD-9851 Ti 20TB 7,200 RPM CMR Enterprise Hard Drive

Hard Drives · Altrix · SKU HD9851-TI · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index2,386 (Hard Drives scale)
Category rank#6,137
Street price$379
Power8 W
Performance per dollar6.30
Released2021

Specifications

BrandAltrix
ModelAltrix HD-9851 Ti
Capacity20 TB
ClassEnterprise
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer280 MB/s
Workload rating550 TB/year
MTBF2.5 million hours
Helium-filledYes
Warranty5 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Strivon HD-5014 Max 24TB 7,200 RPM CMR NAS Hard Drive2,673$409Compare
Mirenta HD-3757 SE 8TB 7,200 RPM CMR NAS Hard Drive1,321$129Compare
Altrix HD-9023 Pro 4TB 5,400 RPM CMR Surveillance Hard Drive646$59Compare
Mirenta HD-2444 Pro 2TB 5,400 RPM SMR Desktop Hard Drive1,189$99Compare
Novexa HD-6689 Pro 2TB 5,400 RPM CMR Surveillance Hard Drive1,144$89Compare
Mirenta HD-4109 Max 24TB 7,200 RPM CMR NAS Hard Drive2,691$469Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-9851 Ti 20TB 7,200 RPM CMR Enterprise Hard Drive”, https://vextor7.com/item/2007072 (accessed 2026-10-25).