Hardware Spec Index

Altrix HD-9921 XT 16TB 7,200 RPM CMR NAS Hard Drive

Hard Drives · Altrix · SKU HD9921-XT · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index2,130 (Hard Drives scale)
Category rank#39,608
Street price$269
Power7 W
Performance per dollar7.92
Released2025

Specifications

BrandAltrix
ModelAltrix HD-9921 XT
Capacity16 TB
ClassNAS
RecordingCMR (conventional magnetic recording)
Spindle speed7,200 RPM
Cache512 MB
InterfaceSATA 6 Gb/s
Sustained transfer260 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
Mirenta HD-4591 Core 2TB 5,400 RPM CMR Surveillance Hard Drive1,074$79Compare
Strivon HD-9246 Ti 28TB 7,200 RPM CMR Enterprise Hard Drive2,700$449Compare
Strivon HD-4098 SE 24TB 7,200 RPM CMR NAS Hard Drive2,731$429Compare
Mirenta HD-2173 XT 16TB 7,200 RPM CMR Enterprise Hard Drive2,504$479Compare
Novexa HD-7338 XT 24TB 7,200 RPM CMR NAS Hard Drive2,551$459Compare
Altrix HD-2830 Edge 24TB 7,200 RPM CMR Enterprise Hard Drive2,829$599Compare

All Hard Drives · JSON

Cite this page: Hardware Spec Index, “Altrix HD-9921 XT 16TB 7,200 RPM CMR NAS Hard Drive”, https://vextor7.com/item/4952895 (accessed 2026-10-24).