What are the performance specifications of this drive?

The Ultrastar DC HC310 operates at 7200 RPM with 256MB cache memory. This spindle speed delivers consistent access times suitable for routine data center applications, while the 256MB cache reduces latency for frequently accessed data. The combination balances performance with power efficiency for continuous operation.

What physical protection features does the HC310 include?

The drive incorporates multi-axis shock sensor technology that automatically detects and compensates for physical impacts. This feature protects data during both active operation and transport, reducing the risk of drive failure from vibration or mechanical stress in data center environments.

What is the physical form factor and sector format?

The HC310 uses a standard 3.5-inch form factor compatible with enterprise server bays and storage enclosures. The 4TB model features 512n sector format, which ensures optimal compatibility with modern operating systems and storage management software used in data center environments.

Is this drive suitable for data center deployment?

Yes, the Ultrastar DC HC310 is specifically designed for data center applications. It combines enterprise-grade construction with economical mid-range capacity, making it suitable for traditional IT workloads in server arrays, storage appliances, and backup systems where cost-effective storage is required.

0B35950 - Western Digital 0B35950 4TB 7200RPM SATA Enterprise HDD

Name: Western Digital 0B35950 4TB 7200RPM SATA Enterprise HDD
Brand: Western Digital
SKU: 0B35950

0B35950 - Western Digital 0B35950 4TB 7200RPM SATA Enterprise HDD | US IT Hardware

Product overview

The Western Digital Ultrastar DC HC310 4TB (0B35950) is an enterprise-grade internal hard drive designed for data center environments. This 3.5-inch drive delivers 4TB capacity with SATA 6Gb/s interface connectivity, operating at 7200 RPM to support traditional IT workloads requiring economical storage solutions. The drive features 256MB cache memory and employs Advanced Format technology optimized for enterprise reliability. With a 512n sector format, the HC310 addresses both capacity and access requirements for mid-range data center deployments. The drive incorporates multi-axis shock sensor technology to detect and compensate for physical impacts, protecting stored data during operation and transport. Engineered for consistent performance in server and storage array environments, the HC310 provides a cost-effective option for organizations seeking enterprise-class storage without premium pricing.

4TB capacity with SATA 6Gb/s interface for enterprise storage
7200 RPM spindle speed with 256MB cache for consistent performance
Multi-axis shock sensor technology for impact protection
3.5-inch form factor compatible with standard server infrastructure
Advanced Format technology for optimized storage efficiency
512n sector format for modern operating system compatibility

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	0B35950
Brand	Western Digital
Condition	New
AFR	0.44%
Cache	256MB
Model	HGST Ultrastar DC HC310 7K6
Format	512e
Series	Ultrastar DC HC310
Capacity	4TB
Encryption	No SED
Idle Power	7W
Technology	CMR

Best for

Data Center Storage
The 4TB capacity and SATA 6Gb/s interface support traditional data center applications requiring economical mid-range storage. The 7200 RPM speed enables consistent data access for routine IT workloads.
Server Arrays
Enterprise-grade construction with 256MB cache and multi-axis shock sensor technology makes this drive suitable for deployment in server storage arrays where reliability and impact protection are essential.
Archive Systems
The 4TB capacity and Advanced Format technology provide efficient storage for archival and backup applications in data center environments requiring cost-effective capacity expansion.
NAS and Storage Appliances
SATA 6Gb/s connectivity and 7200 RPM performance support network-attached storage and dedicated storage appliance deployments in enterprise environments.

Frequently asked questions

What is the storage capacity and interface type of the Ultrastar DC HC310 0B35950?

The drive provides 4TB of storage capacity with SATA 6Gb/s interface connectivity. This combination supports mid-range data center storage requirements while maintaining compatibility with standard enterprise server and storage infrastructure. The SATA 6Gb/s interface ensures adequate bandwidth for traditional IT workloads.

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4TB SATA Hard Drives 7200 RPM SATA Hard Drives 3.5-inch SATA Hard Drives Enterprise SATA Hard Drives

RPM	7200 RPM
MTBF	2,000,000 hours
Media Type	Conventional Magnetic Recording (CMR)
Transfer Rate	Up to 255MB/s
Seek Time Average	8.9 ms
Max Sustained Transfer Rate	255 MB/s

Voltage	5 / 12 V
Power Consumption	7 W

Interface	SATA III
SATA Revision	SATA III (6Gb/s)

Western Digital 0B35950 4TB 7200RPM SATA Enterprise HDD

Product overview

Featuring

Best for

Frequently asked questions

Details

Shipping, warranty & returns

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Performance

Power Consumption

Networking Ports & Interfaces

Western Digital 0B35950 4TB 7200RPM SATA Enterprise HDD

Product overview

Featuring

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

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Performance

Power Consumption

Networking Ports & Interfaces