WD Ultrastar SAS 4TB 3.5inch Data Centre Hard Drive HDD - 0B36048

WD Ultrastar SAS 4TB 3.5" Data Centre Hard Drive (HDD) overview

Drive To Endure.

Ultrastar® hard drives feature up to 10 times the workload rating1 of desktop drives and employ advanced technologies for enterpriseclass reliability, power efficiency and performance. Designed from the ground up to be an ultra-robust storage device, Ultrastar drives are the perfect choice for your business.

Product Benefits

High Workload Rating
Delivering dependable performance to any storage environment, Ultrastar hard drives are designed with a workload rating up to 550TB per year1, among the highest of any 3.5-inch hard drive.
HelioSeal® Technology
Featured in over 20 million shipped Western Digital hard drives2, HelioSeal technology enables the highest capacities and less turbulence on large storage arrays. And now on its fifth generation design, HelioSeal technology is field-tested and proven to deliver high capacity, reliability, and power efficiency you can trust.
Enterprise-class Storage to Rely On
With up to 2.5 million hours MTBF rating, Ultrastar hard drives deliver reliability and durability, are built for yearly operation (24x7x365) within the most demanding storage environments and are backed with a 5-year limited warranty.
Compatibility Testing
All Ultrastar hard drives are extensively tested across a variety of popular OEM storage systems, SATA controllers, and host bus adapters to ensure ease of integration for a plug and play solution.
Vibration Protection
Enhanced Rotational Vibration Safeguard (RVS) technology uses sophisticated electronics to monitor the drive and correct linear and rotational vibrations in real time for improved performance versus traditional desktop drives in high vibration environments.
Dual-stage Actuator Technology
Ultrastar drives feature a dual-stage actuator head positioning system for a high degree of accuracy. The primary stage provides course displacement while the secondary stage uses piezoelectric motion to fine tune the head positioning to a higher degree of precision.
Dynamic Fly-height Technology
Each read-write head’s fly height is adjusted in real time to ensure consistent performance for reduced errors and optimized reliability.
7200 RPM Class
This 7200 RPM-class hard drive delivers the fastest performance with the highest workload rating of any high-capacity drive from Western Digital. Ensure you have the most capable hard drive regardless of the application with Ultrastar hard drives.

Best-fit Applications

Enterprise servers and storage systems
Business-critical applications needing reliable, robust high-capacity storage
Surveillance analytics and industrial applications

Ultrastar Advantage

The Ultrastar family delivers a long-standing tradition of reliability leadership with MTBF ratings of at least 2M hours and a 5-year limited warranty. Ultrastar quality, capacity, power efficiency, and worldclass technical support and service help provide customers with a lower total cost of ownership.

Western Digital is dedicated to providing a complete portfolio of hard drives to create environments for data to thrive.

General
Dimensions	102mm x 147mm x 26mm
Weight (Max)	715g
Device Type	Hard Drive - Internal

Connectivity
Interfaces	1 x SAS 12 Gb/s 8.9 cm (3.5")
Compatible Bays	1 x Internal - 3.5" x 1/3H

Manufacturer Warranty
Warranty Length	5 Years

Performance
Interface Transfer Rate (Max)	12Gb/s
Cache	256MB
Performance Class	7200RPM
Sustained Data Transfer Rate (Max)	255MB/s

Reliability
Load/Unload Cycles	600,000
MTBF	2,000,000 Hours

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Delivery Options

Next Working Day Delivery

Get your order delivered the next working day for £5.99, available when ordering Monday - Thursday and before 17:00 on that day if the product is in stock and your payment has cleared.

Pre 12 Next Working Day Delivery

Get your order delivered the next working day before 12:00pm for £10.98, available when ordering Monday - Thursday and before 17:00 on that day if the product is in stock and your payment has cleared. Some orders if via PayPal and the first customer order may not clear in time.

Weekend Delivery - Saturday & Sunday

If you need your order at the weekend, for £12.58, you can specify the day you wish to have it delivered to you, Saturday or Sunday providing your order has been placed by 17:00 on the Friday before.

Economy Delivery

Economy delivery is available on all orders of any value being shipped within the UK.

WD Ultrastar SAS 4TB 3.5" Data Centre Hard Drive (HDD)