Hardware Spec Index

Novexa HD-8521 Ultra 6TB 5,400 RPM CMR NAS Hard Drive

Hard Drives · Novexa · SKU HD8521-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index1,719 (Hard Drives scale)
Category rank#31,718
Street price$209
Power5 W
Performance per dollar8.22
Released2019

Specifications

BrandNovexa
ModelNovexa HD-8521 Ultra
Capacity6 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed5,400 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer190 MB/s
Workload rating300 TB/year
MTBF1.2 million hours
Helium-filledNo
Warranty3 years

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Cite this page: Hardware Spec Index, “Novexa HD-8521 Ultra 6TB 5,400 RPM CMR NAS Hard Drive”, https://vextor7.com/item/95522182 (accessed 2026-10-25).