Hardware Spec Index

Altrix HD-4639 XT 4TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD4639-XT · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index1,472 (Hard Drives scale)
Category rank#34,723
Street price$129
Power5 W
Performance per dollar11.41
Released2024

Specifications

BrandAltrix
ModelAltrix HD-4639 XT
Capacity4 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed5,400 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer180 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledNo
Warranty2 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

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Cite this page: Hardware Spec Index, “Altrix HD-4639 XT 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/6897263 (accessed 2026-10-20).