Description, Specifications for WD 16TB Ultrastar DC HC555
Western Digital Ultrastar DC HC555 – 16TB SATA
The Western Digital Ultrastar® DC HC555 16TB SATA hard drive is a high-capacity solution engineered for hyperscale cloud and enterprise environments. Built with CMR technology and a helium-sealed design, it delivers better watts-per-TB and reduced cooling costs, ensuring operational efficiency at scale.
With its advanced energy-assisted PMR (ePMR) technology, this drive provides increased areal density and performance while maintaining compatibility with standard 3.5-inch data center infrastructure. The HC555 is designed to support the most demanding workloads with its 2.5 million-hour MTBF and 5-year warranty, giving enterprises the confidence needed for mission-critical deployments.
- Massive 16TB storage capacity in standard 3.5-inch size
- High areal density with helium-filled architecture
- Optimized for read/write-intensive data center applications
- Supports 24x7 availability with robust endurance metrics
Specifications – 16TB Ultrastar DC HC555
| Attribute | Specification |
|---|---|
| Model Number | WUH722016CLxxyz |
| Form Factor | 3.5-inch |
| Interface | SATA 6 Gb/s |
| Capacity | 16TB |
| Recording Technology | CMR (Conventional Magnetic Recording) |
| Drive Technology | Helium |
| Sector Format | 512e / 512 |
| Areal Density (max) | 1024 Gbits/in² |
| RV Sensors | Yes |
| Cache Size | 512 MB |
| Rotational Speed | 7200 RPM |
| MTBF | 2.5 million hours (projected) |
| Warranty | 5 years |
| Power - Idle | 5.6 W |
| Power - Operating (typical) | 6.9 W |
| Dimensions (L x W x H) | 5.787" x 4.0" x 1.028" |
| Weight | ~715g |
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