Hardware Spec Index

Mirenta HD-4691 XT 20TB 7,200 RPM CMR Enterprise Hard Drive

Hard Drives · Mirenta · SKU HD4691-XT · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index2,934 (Hard Drives scale)
Category rank#35,346
Street price$599
Power8 W
Performance per dollar4.90
Released2020

Specifications

BrandMirenta
ModelMirenta HD-4691 XT
Capacity20 TB
ClassEnterprise
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer280 MB/s
Workload rating550 TB/year
MTBF2.5 million hours
Helium-filledYes
Warranty5 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Novexa HD-6357 Prime 20TB 7,200 RPM CMR NAS Hard Drive2,257$339Compare
Mirenta HD-1755 Plus 16TB 7,200 RPM CMR Enterprise Hard Drive1,902$229Compare
Mirenta HD-1485 Ultra 24TB 7,200 RPM CMR NAS Hard Drive3,100$569Compare
Mirenta HD-9778 Ti 6TB 5,400 RPM CMR NAS Hard Drive1,099$79Compare
Novexa HD-3044 Ultra 12TB 7,200 RPM CMR NAS Hard Drive1,637$169Compare
Mirenta HD-3933 Prime 12TB 7,200 RPM SMR Desktop Hard Drive1,903$229Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-4691 XT 20TB 7,200 RPM CMR Enterprise Hard Drive”, https://vextor7.com/item/9534236 (accessed 2026-10-20).