- Description
- Specifications
18 Terabytes of Enterprise Capacity to Lower Your Cost per TB
Data center storage decisions come down to total cost of ownership, and packing more capacity into every drive bay is how you lower it. The WD Ultrastar DC HC550 delivers 18TB in a standard 3.5-inch drive over a fast 12Gb/s SAS interface, so servers and arrays hold more data in the same rack space with less power and cost per terabyte. Browse more Western Digital storage or other hard drives.
Deployment Notes
The Ultrastar DC HC550 is built for 24/7 enterprise and data center workloads: RAID arrays, servers, object storage, and high-capacity archives. Its 12Gb/s SAS interface suits dual-port enterprise controllers and multi-drive arrays, while CMR (conventional magnetic recording) keeps write performance consistent for RAID rebuilds and mixed workloads, unlike SMR drives. A 7200 RPM spindle and 512MB cache keep throughput high, and helium-sealed construction runs cooler and draws less power per terabyte across a dense enclosure.
Highlights
- 18TB capacity: high-density storage in a standard 3.5-inch form factor for lower cost per terabyte.
- 12Gb/s SAS interface: fast, reliable enterprise connectivity for servers and RAID controllers.
- 7200 RPM with 512MB cache: consistent throughput for demanding data center workloads.
- CMR recording and 512e sector format for RAID compatibility and predictable performance.
- Backed by a 5-year limited warranty for data center reliability.
