Hardware Spec Index

Altrix HD-3945 XT 4TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Altrix · SKU HD3945-XT · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index1,115 (Hard Drives scale)
Category rank#35,436
Street price$89
Power5 W
Performance per dollar12.53
Released2024

Specifications

BrandAltrix
ModelAltrix HD-3945 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

Similar Hard Drives

ModelBenchmarkPriceCompare
Altrix HD-6229 XT 20TB 7,200 RPM CMR Enterprise Hard Drive2,246$289Compare
Altrix HD-5327 Plus 12TB 7,200 RPM CMR NAS Hard Drive2,054$299Compare
Altrix HD-7604 Ultra 20TB 7,200 RPM CMR NAS Hard Drive2,924$599Compare
Altrix HD-8480 XT 8TB 7,200 RPM SMR Desktop Hard Drive1,596$169Compare
Altrix HD-5085 Core 20TB 7,200 RPM CMR NAS Hard Drive2,826$489Compare
Altrix HD-5961 Core 2TB 5,400 RPM CMR Surveillance Hard Drive775$59Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-3945 XT 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/2893258 (accessed 2026-10-21).