Description & Specifications
Western Digital Ultrastar DC HC555 – 18TB SATA
The Western Digital Ultrastar® DC HC555 18TB SATA hard drive is a powerful storage solution designed for data-intensive enterprise environments and hyperscale data centers. Using energy-assisted PMR (ePMR) and HelioSeal® technology, it delivers higher capacities, increased reliability, and improved power efficiency without compromising performance.
With an impressive 18TB capacity in a standard 3.5-inch form factor, the HC555 enables organizations to scale their infrastructure while reducing rack space and operational costs. This drive is ideal for cloud object storage, big data analytics, and distributed file systems requiring extreme reliability and endurance.
- Ultra-high 18TB capacity for large-scale deployments
- Helium-filled design improves energy efficiency and reduces vibration
- Robust 2.5M-hour MTBF for mission-critical environments
- Backed by a comprehensive 5-year warranty
Specifications – 18TB Ultrastar DC HC555
| Attribute | Specification |
|---|---|
| Model Number | WUH722018CLxxyz |
| Form Factor | 3.5-inch |
| Interface | SATA 6 Gb/s |
| Capacity | 18TB |
| 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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