Hardware Spec Index

Strivon HD-9991 Ultra 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Strivon · SKU HD9991-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index2,297 (Hard Drives scale)
Category rank#8,416
Street price$299
Power8 W
Performance per dollar7.68
Released2020

Specifications

BrandStrivon
ModelStrivon HD-9991 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

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Cite this page: Hardware Spec Index, “Strivon HD-9991 Ultra 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/2844111 (accessed 2026-10-24).