Western Digital 0F38354 SAS-12GBPS HDD
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0F38354 Western Digital Ultrastar Dc Hc550 18Tb 7200rpm New

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Part Number#: 0F38354
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Short Description:
0F38354 Western Digital Ultrastar Dc Hc550 18Tb 7200rpm Sas-12Gbps 512mb Buffer 512e 3.5inch Helium Platform Enterprise Hard Disk Drive | Brand New 3 Years Warranty
Western Digital
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Sealed Spare
Warranty provided by ALLHDD.COM:
90 Days

Digital Ultrastar DC HC550 18TB 7200RPM SAS-12Gbps

  • Storage solutions play a crucial role in ensuring the safekeeping and accessibility of vast amounts of information. One such storage device that caters to enterprise-level requirements is the Western Digital Ultrastar DC HC550. In this comprehensive guide, we will delve into the features, specifications, and benefits of the Western Digital Ultrastar DC HC550 18TB hard disk drive. Whether you're an IT professional, a business owner, or simply curious about data storage technology, this article will provide you with valuable insights.

Western Digital Ultrastar DC HC550

  • The Western Digital Ultrastar DC HC550 is a high-capacity, high-performance hard disk drive designed for enterprise environments. It's part of the Ultrastar series, which is Western Digital's lineup of storage solutions tailored for data-intensive applications. The HC550 model is renowned for its impressive storage capacity, fast rotational speed, and advanced technology features.

Key Features

In this section, we'll break down the key features of the Western Digital Ultrastar DC HC550:

  • Impressive Storage CapacityThe HC550 boasts a colossal 18TB storage capacity. This immense storage space is ideal for enterprises dealing with vast amounts of data, including backups, databases, and multimedia content.
  • High Rotational SpeedWith a rotational speed of 7200 revolutions per minute (RPM), the HC550 delivers quick data access and transfer rates. This makes it suitable for applications that demand rapid data retrieval, such as real-time analytics.
  • SAS-12Gbps InterfaceThe SAS (Serial Attached SCSI) interface with a speed of 12Gbps ensures fast and reliable data transmission between the hard drive and the host system. It provides a substantial bandwidth for data-intensive tasks.
  • Large 512MB BufferA 512MB buffer enhances data read and write operations, reducing latency and optimizing performance. The buffer acts as a temporary storage area for frequently accessed data, further enhancing the hard drive's speed.
  • 512e FormatThe 512e format refers to the advanced sector format employed by the HC550. It ensures compatibility with legacy systems while providing modern storage capacities and performance.
  • 3.5-Inch Form FactorThe HC550 is designed in a 3.5-inch form factor, which is a standard size for enterprise hard drives. This form factor makes it compatible with a wide range of server and storage systems.
  • Helium PlatformThe HC550 employs a helium-filled platform, which reduces air resistance inside the drive, resulting in lower power consumption and improved cooling. This technology also allows for the integration of more platters, increasing storage capacity.
  • Enterprise-Grade ReliabilityWestern Digital has a reputation for producing reliable storage solutions, and the Ultrastar series is no exception. The HC550 is built to withstand the demanding 24/7 operation of enterprise environments.


Now that we've explored its features, let's take a look at some of the applications where the Western Digital Ultrastar DC HC550 excels:

  • Data CentersData centers are the nerve centers of modern businesses, housing vast amounts of critical data. The HC550's high capacity, speed, and reliability make it a perfect choice for data centers that need to store and access data quickly and securely.
  • Big Data AnalyticsIn the world of big data, the speed at which data can be processed and analyzed is crucial. The HC550's 7200RPM speed and 12Gbps SAS interface make it an ideal storage solution for big data analytics applications, where quick data access is essential.
  • Cloud StorageCloud service providers require storage solutions that can scale to accommodate the growing demands of their customers. The HC550's massive storage capacity and enterprise-grade reliability make it a solid choice for cloud storage providers.
  • Video SurveillanceVideo surveillance systems generate a vast amount of data that needs to be stored for extended periods. The HC550's high capacity and 512MB buffer ensure that video footage is stored securely and can be accessed when needed.
  • Archiving and BackupEnterprises need reliable and high-capacity storage for archiving and backup purposes. The HC550's large storage capacity and 512e format make it well-suited for long-term data retention.

Benefits of the Western Digital Ultrastar DC HC550

Here are some of the key benefits of using the Western Digital Ultrastar DC HC550 in enterprise environments:

  • ScalabilityAs data storage requirements grow, the HC550 can easily scale to meet these demands. Its massive 18TB capacity ensures that you won't run out of storage space anytime soon.
  • PerformanceThe combination of a 7200RPM rotational speed, 12Gbps SAS interface, and a large 512MB buffer results in exceptional performance. This means faster data access and reduced latency, which is critical in many enterprise applications.
  • ReliabilityWestern Digital is known for producing reliable storage solutions, and the Ultrastar series is built to meet the demands of 24/7 operation. This reliability ensures that your data is safe and accessible at all times.
  • CompatibilityThe 512e format and 3.5-inch form factor make the HC550 compatible with a wide range of systems, both old and new. This versatility ensures that you can integrate it into your existing infrastructure without compatibility issues.
  • Energy EfficiencyThe helium-filled platform of the HC550 not only improves storage density but also reduces power consumption and heat generation. This can lead to lower operating costs and improved system cooling.

Summary, The Western Digital Ultrastar DC HC550 18TB 7200RPM SAS-12Gbps 512MB Buffer 512e 3.5-inch Helium Platform Enterprise Hard Disk Drive is a powerhouse storage solution designed for the most demanding enterprise environments. With its massive storage capacity, high-speed performance, and enterprise-grade reliability, it excels in data centers, big data analytics, cloud storage, video surveillance, and archiving applications. Its scalability, compatibility, and energy efficiency make it a valuable addition to any enterprise storage infrastructure. If you're looking for a storage solution that can handle your data-intensive needs, the HC550 is a top contender that should be on your radar. With Western Digital's reputation for quality and innovation, you can trust that your data will be in safe hands with the Ultrastar DC HC550.

General Information

  • Manufacturer: Western Digital
  • Part Number or SKU# 0F38354
  • Product Type: Hard Disk Drive

Technical Information

  • Storage Capacity : 18 Tb
  • Interface : Sas-12Gbps
  • Mtbf : 2.5 Million Hours


  • Cloud & Hyperscale Storage
  • Massive Scale-out (mso), High-density Data Centers
  • Distributed File Systems
  • Bulk Storage Using Object Storage Solutions Likeceph™ And Openstack® Swift
  • Primary And Secondary Storage For Apachehadoop® For Big Data Analytics
Drive Performance

  • Interface Transfer Rate : 1200 Mbps
  • Sustained Transfer Rate : 257 Mbps
  • Average Latency : 4.16 Ms
  • Buffer : 512 Mb
  • Rotational Speed : 7200 Rpm

Dimensions and Weight

  • Width: 4 Inch
  • Depth: 5.8 Inch
  • Height: 1 Inch
  • Weight: 1.52 Lbs

Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.

Western Digital
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Sealed Spare
Warranty provided by ALLHDD.COM:
90 Days


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30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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(b) any misuse outside the instructions in the user manual for any specific product;

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In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

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