Hardware Spec Index

Altrix HD-6477 XT 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD6477-XT · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index2,548 (Hard Drives scale)
Category rank#30,141
Street price$419
Power8 W
Performance per dollar6.08
Released2019

Specifications

BrandAltrix
ModelAltrix HD-6477 XT
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-5369 Ti 12TB 7,200 RPM CMR NAS Hard Drive1,647$139Compare
Mirenta HD-7482 Edge 6TB 5,400 RPM CMR Surveillance Hard Drive1,320$99Compare
Strivon HD-5665 Ti 2TB 5,400 RPM SMR Desktop Hard Drive763$49Compare
Novexa HD-7608 Ti 16TB 7,200 RPM CMR NAS Hard Drive2,466$399Compare
Strivon HD-8243 XT 24TB 7,200 RPM CMR NAS Hard Drive2,787$449Compare
Novexa HD-2047 Prime 8TB 7,200 RPM CMR NAS Hard Drive1,360$149Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-6477 XT 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/4170455 (accessed 2026-10-23).