Hardware Spec Index

Novexa HD-6491 Ultra 4TB 5,400 RPM CMR Surveillance Hard Drive

Hard Drives · Novexa · SKU HD6491-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index855 (Hard Drives scale)
Category rank#27,969
Street price$59
Power5 W
Performance per dollar14.49
Released2023

Specifications

BrandNovexa
ModelNovexa HD-6491 Ultra
Capacity4 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed5,400 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer180 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledNo
Warranty2 years

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Cite this page: Hardware Spec Index, “Novexa HD-6491 Ultra 4TB 5,400 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/2220140 (accessed 2026-10-19).