Name: WUH721818AL4205 Western Digital 18TB 7.2K RPM 12Gb/s SAS 3.5" HDD
Brand: Western Digital
SKU: WUH721818AL4205
Price: 469.00 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The WD DC HC550 18TB hard drive serves as a robust storage solution designed to meet the demands of enterprise environments. With its large capacity and SAS interface, it fits well within data center infrastructure, supporting continuous operation and reliable data access.

General Information
Brand	Western Digital
Part Number	WUH721818AL4205

Technical Information
Capacity	18TB
Form Factor	3.5-inch
Disk Format	512e
Cache	512MB
Spindle Speed	7200 RPM
Hot Pluggable	Yes
Hot Swappable	Yes
Hybrid Drive	No
Compatible For	Servers,Enterprise Storage,Data Center
MTBF	2,500,000 hours

Interfaces/Ports
Interface	SAS 12Gb/s

Physical Characteristics
Height	26.1 mm
Width	101.6 mm
Depth	147 mm
Dimensions	26.1 x 101.6 x 147 mm
Condition	Refurbished
Weight	1.76

Miscellaneous
Eco Friendly	Yes
Compliance Standards	WEEE, RoHS, CE, FCC, UL, TUV

Product Description
This WD DC HC550 18TB hard drive is built for enterprise environments that demand high capacity and steady performance. Often found in data centers and storage arrays, it handles heavy workloads while maintaining data integrity. Designed for IT professionals and system administrators, it fits 3.5" drive bays and uses a 12Gb/s SAS interface to connect seamlessly with servers and storage systems. Its 7,200 RPM speed and large cache support smooth operation in demanding applications. Key Features Massive 18TB capacity tailored for archival and backup tasks 12Gb/s SAS delivers reliable, high-speed connectivity 512MB cache helps improve throughput and access times 3.5" form factor fits standard enterprise enclosures Engineered for 24/7 operation in data center settings This drive is typically deployed in enterprise storage solutions or large-scale backup systems, where high capacity and consistent performance are essential. It plays a vital role in managing vast datasets without compromising speed or reliability.

Use Cases
The WD DC HC550 18TB hard drive is engineered for enterprise-grade storage environments requiring high capacity and reliable continuous operation. It caters to IT professionals managing data centers, cloud infrastructures, and virtualized workloads where sustained performance and data integrity are critical. How It's Used: Storing large-scale archival data in enterprise data centers supporting regulatory compliance and long-term retention. Deployments in virtualization clusters requiring dense storage with rapid access speeds for multiple concurrent virtual machines. High-capacity storage arrays in cloud service provider infrastructures handling variable and extensive data throughput. Backup and disaster recovery systems within enterprise IT to ensure quick restore times and data availability. Edge computing nodes needing dependable storage to process and retain local data before synchronization with central systems. This drive enhances operational efficiency by combining robust capacity with the SAS interface suited for multi-host environments, enabling scalable storage solutions that maintain consistent throughput and reliability under heavy workloads.