- Description
- Specifications
Western Digital Ultrastar DC HC550 16TB SAS Data Center Hard Drive with HelioSeal Helium Technology, 12Gb/s SAS Interface, 7200 RPM, 512 MB Buffer, and 5-Year Warranty for High-Capacity Enterprise Storage Deployments
The Western Digital Ultrastar DC HC550 WUH721816AL5204 (0F38357) is a 16TB helium-filled enterprise SAS hard drive that delivers 7200 RPM performance, 512 MB buffer, and 12Gb/s SAS connectivity in a standard 3.5-inch form factor for 24/7 data center environments. The HC550 uses Western Digital's HelioSeal helium technology to maximize capacity per drive bay while reducing power consumption and operating temperature, providing one of the highest capacity points in the Ultrastar data center platform for organizations focused on lowering total cost of ownership per terabyte.
The 16TB capacity addresses the storage density demands of cloud, hyperscale, and enterprise environments where maximizing terabytes per rack unit directly reduces infrastructure and operating costs. The 12Gb/s SAS interface provides dual-port connectivity for multipath I/O in high-availability storage architectures, while the 512e disk format ensures broad compatibility with enterprise storage controllers and operating systems. The 3.5-inch form factor at 1.52 lb fits standard server drive bays and storage enclosures, and the 5-year limited warranty provides long-term procurement confidence for large fleet deployments.
Where the WD Ultrastar DC HC550 16TB Fits
- High-density data center and cloud storage tiers where the 16TB capacity maximizes terabytes per drive bay to reduce rack space, power, and cooling costs, the HelioSeal helium technology delivers lower power consumption per terabyte than air-filled enterprise drives, and the 7200 RPM spindle with 512 MB buffer handles sustained enterprise read/write workloads
- Enterprise SAN and JBOD storage arrays where the 12Gb/s SAS interface supports dual-port multipath I/O for high-availability controller failover, the 512e disk format provides drop-in compatibility with existing storage infrastructure, and the 5-year warranty supports long hardware refresh cycles in enterprise procurement
- Hyperscale, archive, and content delivery platforms where the 16TB capacity provides cost-effective density for cold storage, media streaming, and bulk data workloads, the helium-sealed environment maintains consistent performance across temperature and vibration conditions in dense enclosures, and the Ultrastar DC platform enables rapid qualification into existing data center infrastructure
What the WD Ultrastar DC HC550 16TB Delivers
- 16TB Helium Enterprise SAS: 16TB capacity with 12Gb/s SAS interface. HelioSeal helium technology for maximum density and lower power per terabyte. 512e disk format for enterprise storage controller compatibility.
- 7200 RPM Data Center Performance: 7200 RPM spindle speed with 512 MB buffer. Designed for sustained 24/7 enterprise workloads. Dual-port SAS for multipath I/O in high-availability configurations.
- Lower Total Cost of Ownership: 16TB per drive bay reduces rack space, power, and cooling costs at scale. Helium-sealed environment for lower operating temperature in dense enclosures. 5-year limited warranty for long-term fleet planning.
- 3.5-Inch Form Factor: Standard 3.5-inch LFF chassis at 1.52 lb. Drop-in compatible with enterprise SAN, JBOD, and server platforms. No adapter required for standard drive bays.
