Hardware Spec Index

Mirenta HD-4521 Ultra 8TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Mirenta · SKU HD4521-ULTRA · Released 2020 · Updated 2026-10-18

Key facts

Benchmark index1,336 (Hard Drives scale)
Category rank#29,474
Street price$109
Power6 W
Performance per dollar12.26
Released2020

Specifications

BrandMirenta
ModelMirenta HD-4521 Ultra
Capacity8 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache256 MB
InterfaceSATA 6 Gb/s
Sustained transfer220 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledNo
Warranty2 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Novexa HD-2686 Edge 24TB 7,200 RPM CMR Enterprise Hard Drive2,861$519Compare
Strivon HD-5512 Plus 6TB 5,400 RPM CMR NAS Hard Drive1,048$89Compare
Altrix HD-7257 Ultra 28TB 7,200 RPM CMR Enterprise Hard Drive2,529$369Compare
Strivon HD-7434 SE 16TB 7,200 RPM CMR NAS Hard Drive2,716$469Compare
Strivon HD-9190 Core 6TB 5,400 RPM CMR NAS Hard Drive1,412$129Compare
Strivon HD-2253 Max 6TB 5,400 RPM CMR NAS Hard Drive968$69Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-4521 Ultra 8TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/12280452 (accessed 2026-10-18).