Hardware Spec Index

Altrix HD-3478 Plus 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD3478-PLUS · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index2,228 (Hard Drives scale)
Category rank#30,107
Street price$349
Power8 W
Performance per dollar6.38
Released2023

Specifications

BrandAltrix
ModelAltrix HD-3478 Plus
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
Strivon HD-5501 Pro 4TB 5,400 RPM CMR Surveillance Hard Drive605$49Compare
Novexa HD-9176 Edge 2TB 5,400 RPM CMR Surveillance Hard Drive890$69Compare
Strivon HD-2011 SE 2TB 5,400 RPM SMR Desktop Hard Drive836$59Compare
Mirenta HD-1996 Pro 8TB 7,200 RPM SMR Desktop Hard Drive1,386$129Compare
Mirenta HD-9362 Edge 6TB 5,400 RPM SMR Desktop Hard Drive1,281$99Compare
Altrix HD-1493 Core 6TB 5,400 RPM CMR Surveillance Hard Drive1,244$89Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-3478 Plus 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/6728128 (accessed 2026-10-25).