Hardware Spec Index

Novexa HD-4491 Pro 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Novexa · SKU HD4491-PRO · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index2,823 (Hard Drives scale)
Category rank#28,430
Street price$529
Power8 W
Performance per dollar5.34
Released2025

Specifications

BrandNovexa
ModelNovexa HD-4491 Pro
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
Strivon HD-9183 Core 20TB 7,200 RPM CMR NAS Hard Drive2,403$309Compare
Novexa HD-9109 XT 6TB 5,400 RPM SMR Desktop Hard Drive1,292$129Compare
Mirenta HD-2728 XT 4TB 5,400 RPM SMR Desktop Hard Drive657$49Compare
Strivon HD-5814 SE 4TB 5,400 RPM SMR Desktop Hard Drive1,396$139Compare
Mirenta HD-5813 Plus 2TB 5,400 RPM SMR Desktop Hard Drive676$49Compare
Altrix HD-1934 Plus 16TB 7,200 RPM CMR Enterprise Hard Drive2,386$409Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Novexa HD-4491 Pro 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/1868535 (accessed 2026-10-25).