Hardware Spec Index

Mirenta HD-8559 Ultra 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Mirenta · SKU HD8559-ULTRA · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index2,724 (Hard Drives scale)
Category rank#4,104
Street price$389
Power8 W
Performance per dollar7.00
Released2019

Specifications

BrandMirenta
ModelMirenta HD-8559 Ultra
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-3849 Ultra 20TB 7,200 RPM CMR NAS Hard Drive2,109$339Compare
Strivon HD-8215 Plus 4TB 5,400 RPM CMR Surveillance Hard Drive1,288$109Compare
Strivon HD-5695 XT 16TB 7,200 RPM CMR NAS Hard Drive2,674$469Compare
Strivon HD-8604 Max 6TB 5,400 RPM SMR Desktop Hard Drive1,445$139Compare
Strivon HD-7751 Ultra 6TB 5,400 RPM CMR Surveillance Hard Drive916$79Compare
Altrix HD-9032 Prime 16TB 7,200 RPM CMR Enterprise Hard Drive2,150$249Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-8559 Ultra 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/9784240 (accessed 2026-10-23).