Western Digital
WD Ultrastar DC HC560 Spec and Price in Italy
SATA20TB7200 RPM
The HC560 is the 20TB generation of WD's data-center nearline line, adding OptiNAND to the helium-sealed 7200rpm platform: a 512MB cache and a five-year warranty, per the WD data sheet. Sustained throughput reaches 291 MB/s — near the ceiling of SATA hard-drive mechanics — and the workload rating is the enterprise 550TB/year. It is CMR at nine platters, and the price per terabyte is what makes data-center storage economical.
Current best price
No tracked price — this page compares specifications alone.
Specifications
- Capacity
- 20TB
- Interface
- SATA
- Sequential read
- 291 MB/s
- Sequential write
- 291 MB/s
- Rotation speed
- 7200 RPM
- Form factor
- 3.5-inch
- Cache
- 512 MB
- Warranty
- 5 years
Capacities
| Configuration | Part number |
|---|---|
| 20TB | WUH722020ALE6L4 |
Guides for this category
How much hard drive you actually needWhat a mechanical drive is still for beside an SSD, how to size it for the pile you are offloading, and why a cheap high-capacity drive can be slow.Portable vs desktop hard driveWhat the enclosure decides between a bus-powered 2.5-inch drive and a mains-powered 3.5-inch one, and why an external listing carries fewer numbers.
What owners and reviewers say
Summarised from 1 source(s), reviewed September 14, 2026. A source is counted only where it names this model exactly. How we track prices
Commonly praised
- Reviewers confirmed the vendor's claimed sustained transfer rate in benchmark testing, measuring sequential reads and writes just under the rated figure.
- It posted the strongest workload results the reviewer had recorded for a hard drive in the file-server, web-server and workstation profiles.
- It layers a flash-enhanced metadata architecture, energy-assisted recording, a triple-stage actuator and helium sealing, and carries a five-year warranty.
Commonly criticised
- It is expensive at its asking price.
Sources behind this summary
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.