Hardware Spec Index

Mirenta HD-7639 XT 20TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Mirenta · SKU HD7639-XT · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index2,379 (Hard Drives scale)
Category rank#40,652
Street price$409
Power8 W
Performance per dollar5.82
Released2024

Specifications

BrandMirenta
ModelMirenta HD-7639 XT
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-7683 Core 12TB 7,200 RPM CMR Surveillance Hard Drive1,887$239Compare
Novexa HD-4536 Plus 20TB 7,200 RPM CMR Enterprise Hard Drive2,766$439Compare
Mirenta HD-7644 Core 24TB 7,200 RPM CMR NAS Hard Drive2,795$479Compare
Altrix HD-1086 Core 6TB 5,400 RPM CMR NAS Hard Drive933$79Compare
Mirenta HD-7859 Max 28TB 7,200 RPM CMR NAS Hard Drive2,934$599Compare
Altrix HD-1636 Max 2TB 5,400 RPM CMR Surveillance Hard Drive740$59Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-7639 XT 20TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/60000752 (accessed 2026-10-20).