Name: 0B47747 Western Digital Ultrastar DC HC555 18TB 3.5-inch SAS HDD
Brand: Western Digital
SKU: 0B47747
Price: 1.00 USD
Availability: InStock
Rating: 4.8 (122 reviews)

Product Overview
The Western Digital Ultrastar DC HC555 18TB HDD is designed as an enterprise storage drive, providing substantial capacity in a 3.5-inch form factor. It operates at 7,200 RPM and connects via a 12Gb/s SAS interface, supporting efficient data throughput. The drive includes a 512MB cache and utilizes 512e sector formatting with sector erase capabilities.

General Information
Brand	Western Digital

Technical Information
Capacity	18TB
Drive Type	Internal Hard Drive
Form Factor	3.5-inch
Disk Format	512e
Cache	512MB
Spindle Speed	7,200 RPM
Hot Pluggable	Yes
Hot Swappable	Yes
Hybrid Drive	No
Compatible For	Enterprise,Data Center,Servers,Storage Arrays
MTBF	2,500,000 hours

Interfaces/Ports
Interface	SAS 12Gb/s

Physical Characteristics
Height	1.028
Width	3.99
Depth	5.79
Dimensions	1.028 x 3.99 x 5.79 inches
Condition	Refurbished
Weight	1.76

Miscellaneous
Assembly Required	No
Compliance Standards	RoHS, CE, FCC, UL, TUV, cULus

Product Description
The Western Digital Ultrastar DC HC555 0B47747 is a high-capacity enterprise-class hard drive designed for data centers and storage arrays. It delivers 18TB of storage in a 3.5-inch form factor with a 7,200 RPM spindle speed. This drive features a 12Gb/s SAS interface, enabling faster data transfer rates suitable for demanding workloads. It includes a 512MB cache to optimize data access and reduce latency. Ideal for enterprise IT professionals managing large scale storage environments, the Ultrastar DC HC555 supports sector erase and uses 512e sector formatting to enhance compatibility with existing systems. Key Features 18TB storage capacity for extensive data retention 7,200 RPM spindle speed balancing performance and power 12Gb/s SAS interface for high-speed connectivity 512MB cache buffer aiding efficient data transfers 512e sector size with sector erase technology for data integrity This hard drive provides a balance between capacity, speed, and interface technology, making it suitable for enterprise storage arrays and large-scale data repositories. Its specifications align with the needs of IT departments requiring reliable storage infrastructure without unsupported performance claims.

Use Cases
This enterprise hard drive is typically used in data centers and storage arrays where large volumes of data need to be stored securely and accessed reliably. It is suited for IT environments with workload demands that benefit from SAS connectivity and considerable cache memory. How It's Used: Archiving and backup storage in enterprise data centers High-capacity storage for virtualization platforms Data warehousing requiring sequential and random access Storage arrays in medium to large IT infrastructure setups Application servers needing SAS-based drives Within these environments, the drive acts as a fundamental storage component, providing capacity and interface compatibility without requiring additional configuration beyond standard enterprise hardware integration.

FAQ's
What interface does the 0B47747 Ultrastar DC HC555 use? This model uses a 12Gb/s SAS interface, designed for enterprise storage systems requiring high data transfer rates. What is the rotational speed of this Western Digital HDD? The drive operates at 7,200 RPM, which balances power consumption with performance in data center environments. How large is the cache on the Ultrastar DC HC555? The 0B47747 model includes a 512MB cache to help optimize data handling and reduce latency during operations. What sector size does this hard drive use? The drive uses 512e sector size formatting, which is compatible with many enterprise storage systems and supports sector erase technology. Is this drive suitable for use in 3.5-inch bays? Yes, the Western Digital Ultrastar DC HC555 is a 3.5-inch form factor drive intended for standard enterprise storage bays. Does the 0B47747 support sector erase technology? Yes, this model includes sector erase features to assist with data integrity and management in enterprise environments.