Hardware Spec Index

Novexa HD-4640 Edge 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Novexa · SKU HD4640-EDGE · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index2,960 (Hard Drives scale)
Category rank#27,870
Street price$529
Power8 W
Performance per dollar5.60
Released2022

Specifications

BrandNovexa
ModelNovexa HD-4640 Edge
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
Altrix HD-6707 SE 2TB 5,400 RPM CMR Surveillance Hard Drive1,186$99Compare
Altrix HD-5895 Core 16TB 7,200 RPM CMR NAS Hard Drive2,086$349Compare
Mirenta HD-5666 SE 12TB 7,200 RPM CMR Desktop Hard Drive2,333$359Compare
Mirenta HD-8109 Prime 24TB 7,200 RPM CMR NAS Hard Drive2,835$469Compare
Novexa HD-6623 Plus 16TB 7,200 RPM CMR Enterprise Hard Drive1,871$209Compare
Altrix HD-6982 Prime 20TB 7,200 RPM CMR NAS Hard Drive3,100$569Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Novexa HD-4640 Edge 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/89178322 (accessed 2026-10-19).