Hardware Spec Index

Novexa HD-4557 Prime 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Novexa · SKU HD4557-PRIME · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index3,072 (Hard Drives scale)
Category rank#37,957
Street price$529
Power8 W
Performance per dollar5.81
Released2019

Specifications

BrandNovexa
ModelNovexa HD-4557 Prime
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-2839 Prime 12TB 7,200 RPM CMR NAS Hard Drive1,855$209Compare
Mirenta HD-3557 XT 24TB 7,200 RPM CMR Enterprise Hard Drive2,761$439Compare
Novexa HD-6921 Edge 24TB 7,200 RPM CMR NAS Hard Drive2,526$399Compare
Novexa HD-7300 Pro 24TB 7,200 RPM CMR Enterprise Hard Drive2,560$389Compare
Altrix HD-7992 Plus 2TB 5,400 RPM CMR Surveillance Hard Drive781$49Compare
Strivon HD-3353 Ti 16TB 7,200 RPM CMR NAS Hard Drive2,571$419Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Novexa HD-4557 Prime 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/46563957 (accessed 2026-10-24).