Hardware Spec Index

Mirenta HD-3691 XT 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Mirenta · SKU HD3691-XT · Released 2023 · Updated 2026-10-18

Key facts

Benchmark index2,609 (Hard Drives scale)
Category rank#30,504
Street price$469
Power8 W
Performance per dollar5.56
Released2023

Specifications

BrandMirenta
ModelMirenta HD-3691 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
Novexa HD-2281 Prime 6TB 5,400 RPM CMR Surveillance Hard Drive1,791$179Compare
Altrix HD-4355 Pro 28TB 7,200 RPM CMR NAS Hard Drive2,510$379Compare
Altrix HD-2054 Ti 4TB 5,400 RPM CMR Surveillance Hard Drive1,104$79Compare
Novexa HD-6619 Ti 4TB 5,400 RPM SMR Desktop Hard Drive1,430$129Compare
Mirenta HD-3783 Plus 28TB 7,200 RPM CMR NAS Hard Drive2,952$599Compare
Altrix HD-7138 Edge 20TB 7,200 RPM CMR NAS Hard Drive2,314$389Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-3691 XT 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/124841 (accessed 2026-10-18).