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Overview
Specs
Reviews (33)
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As the industry evolves to develop purpose-built solutions for growing data storage requirements, IT managers continue to rely on lower capacity drives that are economical to acquire, yet deliver quick and reliable data access for traditional data center applications. Ultrastar 7K6 is a low-capacity HDD, with 6TB and 4TB offerings, that helps address economic and access requirements of many traditional IT workloads. Lower capacity drives also help address architecture limitations. The Ultrastar 7K6 is designed for traditional storage and server applications as well as distributed and scalable computing, including block and file storage architectures, providing economical capacities, fast 7200 RPM performance and lower $/unit acquisition cost to help ease budget constraints.Storage Capacity: 4 TBSpindle Speed (rpm): 7200Buffer: 256 MBDrive Interface: SATADrive Interface Standard: SATA/600Operating Power Consumption: 7 WDrive Type: InternalDrive Width: 3.5Height: 1"Width: 4"Depth: 5.8"Weight (Approximate): 1.58 lbDevice Supported: ServerEnvironmentally Friendly: YesEnvironmental Certification: REACHEnvironmental Certification: RoHS 2Limited Warranty: 5 Year"
Learn more about the Western Digital 0B35950
Model
Brand
WD
Series
Ultrastar DC HC310
Model
0B35950
Packaging
Bare Drive
Performance
Interface
SATA 6.0Gb/s
Capacity
4TB
RPM
7200 RPM
Cache
256MB
Average Latency
6Gb/s
Features
Features
High Workload Rating Delivering dependable performance to any storage environment, Ultrastar hard drives are designed with a workload rating up to 550TB per year, among the highest of any 3.5-inch hard drive.
Enterprise-class Storage to Rely On Ultrastar is our top-end drive for data centers. With up to 2.5 million hours MTBF, Ultrastar hard drives deliver reliability and durability, are built for yearly operation (24x7x365) within the most demanding storage environments.
HelioSeal Technology Featured in over 30 million Western Digital hard drives shipped, HelioSeal technology allows for higher capacities and lower power on large storage arrays. And now on its 5th generation design, HelioSeal technology is field-tested and proven to deliver high capacity, reliability, and power efficiency you can trust.
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.
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.
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.
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.
7200 RPM-Class This family of 7200 RPM-class hard drives delivers the fastest performance with the highest workload rating of any drive in Western Digital's hard drive lineup.
Usage
For Enterprise Storage
Dimensions
Form Factor
3.5"
Height (maximum)
26.10mm
Width (maximum)
101.60mm
Length (maximum)
147.00mm
Additional Information
First Listed on Newegg
July 14, 2025
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.