Hardware Spec Index

Altrix HD-9518 SE 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD9518-SE · Released 2019 · Updated 2026-10-27

Key facts

Benchmark index2,079 (Hard Drives scale)
Category rank#20,559
Street price$289
Power8 W
Performance per dollar7.19
Released2019

Specifications

BrandAltrix
ModelAltrix HD-9518 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
Novexa HD-3725 Edge 4TB 5,400 RPM SMR Desktop Hard Drive990$79Compare
Mirenta HD-6655 SE 6TB 5,400 RPM CMR Desktop Hard Drive1,559$159Compare
Novexa HD-6008 Prime 4TB 5,400 RPM CMR Desktop Hard Drive1,435$149Compare
Novexa HD-6159 Core 8TB 7,200 RPM CMR Surveillance Hard Drive1,696$189Compare
Altrix HD-3612 Ultra 6TB 5,400 RPM SMR Desktop Hard Drive1,696$189Compare
Novexa HD-9240 XT 4TB 5,400 RPM CMR Desktop Hard Drive1,071$79Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-9518 SE 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/65407585 (accessed 2026-10-27).