Hardware Spec Index

Mirenta HD-6855 Pro 12TB 7,200 RPM CMR Surveillance Hard Drive

Hard Drives · Mirenta · SKU HD6855-PRO · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index2,092 (Hard Drives scale)
Category rank#7,882
Street price$249
Power7 W
Performance per dollar8.40
Released2020

Specifications

BrandMirenta
ModelMirenta HD-6855 Pro
Capacity12 TB
ClassSurveillance
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer240 MB/s
Workload rating180 TB/year
MTBF1 million hours
Helium-filledYes
Warranty2 years

Related guides

CMR vs SMR Hard DrivesNAS RAID Levels Explained

Similar Hard Drives

ModelBenchmarkPriceCompare
Strivon HD-7851 Ti 8TB 7,200 RPM SMR Desktop Hard Drive1,742$209Compare
Mirenta HD-5753 SE 12TB 7,200 RPM CMR NAS Hard Drive2,624$379Compare
Altrix HD-2324 Core 6TB 5,400 RPM CMR Surveillance Hard Drive1,452$129Compare
Novexa HD-6682 Pro 8TB 7,200 RPM CMR Surveillance Hard Drive1,549$169Compare
Novexa HD-2680 Max 20TB 7,200 RPM CMR Enterprise Hard Drive2,323$359Compare
Mirenta HD-7043 Prime 16TB 7,200 RPM CMR Enterprise Hard Drive2,149$279Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Mirenta HD-6855 Pro 12TB 7,200 RPM CMR Surveillance Hard Drive”, https://vextor7.com/item/3773528 (accessed 2026-10-25).