Hardware Spec Index

Mirenta HD-3685 Pro 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Mirenta · SKU HD3685-PRO · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index2,663 (Hard Drives scale)
Category rank#24,641
Street price$449
Power8 W
Performance per dollar5.93
Released2026

Specifications

BrandMirenta
ModelMirenta HD-3685 Pro
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-9548 Core 2TB 5,400 RPM CMR Surveillance Hard Drive781$59Compare
Strivon HD-2589 Ultra 6TB 5,400 RPM CMR NAS Hard Drive1,391$139Compare
Strivon HD-7373 Plus 24TB 7,200 RPM CMR Enterprise Hard Drive3,015$569Compare
Strivon HD-2001 Ultra 20TB 7,200 RPM CMR NAS Hard Drive2,703$559Compare
Strivon HD-3587 Ti 8TB 7,200 RPM CMR Desktop Hard Drive1,602$169Compare
Mirenta HD-4101 Plus 8TB 7,200 RPM CMR Surveillance Hard Drive1,978$249Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-3685 Pro 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/3879313 (accessed 2026-10-21).