WD Ultrastar DC HC560 (20TB) - Enterprise HDD
#5 in HDD · Rated 4.6
OptiNAND-enabled 20TB enterprise HDD for hyperscale storage
WD Ultrastar DC HC560 is a 20TB enterprise-class HDD featuring OptiNAND technology, designed for hyperscale cloud and data-center workloads. It supports up to 550TB/year workload, 2.5M hours MTBF, and a 5-year warranty. Built to operate in always-on environments, HC560 is part of WD’s Ultrastar data-center line intended for bulk storage, distributed filesystems, and scale-out archives. Availability across global data-center channels ensures broad language support and international service options, making HC560 a solid choice for large-scale deployments that require dense capacity with enterprise reliability.
Features
- 20TB capacity, 3.5" form factor
- OptiNAND technology for density gains
- CMR recording, SATA interface options
- 512MB cache, 2.5M MTBF
- 5-year warranty
Pros
- Highest-density 20TB option in Ultrastar line
- Enterprise-grade reliability and warranty
- Optimized for hyperscale and bulk storage
Cons
- Price and availability skew toward data-center buyers
- Overkill for consumer-grade needs