Hardware Spec Index

Altrix HD-6639 XT 6TB 5,400 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD6639-XT · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index1,699 (Hard Drives scale)
Category rank#49,880
Street price$169
Power5 W
Performance per dollar10.05
Released2019

Specifications

BrandAltrix
ModelAltrix HD-6639 XT
Capacity6 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed5,400 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer190 MB/s
Workload rating300 TB/year
MTBF1.2 million hours
Helium-filledNo
Warranty3 years

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Cite this page: Hardware Spec Index, “Altrix HD-6639 XT 6TB 5,400 RPM CMR NAS Hard Drive”, https://vextor7.com/item/18201586 (accessed 2026-10-25).