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Western Digital
Western Digital Ultrastar DC HC520 12TB SATA HDD (Renewed)
★★★★★
Reliable Storage for Demanding Workloads The Western Digital 12TB Ultrastar DC HC520 is a renewed enterprise-class hard drive designed for demanding workloads. With a high workload rating, HelioSeal technology, and rotational vibration safeguard, this drive offers reliable performance for data ce...
$329.88*$349.00Save 5%
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*Price sourced from Amazon.com. Last updated:Jul 21, 2026.Price and availability are subject to change.
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Overview
Reliable Storage for Demanding Workloads
The Western Digital 12TB Ultrastar DC HC520 is a renewed enterprise-class hard drive designed for demanding workloads. With a high workload rating, HelioSeal technology, and rotational vibration safeguard, this drive offers reliable performance for data centers and enterprise environments.
Specifications:
- Capacity: 12TB
- Interface: SATA 6 Gb/s
- RPM Class: 7200 RPM
- Cache: 256MB
- Form Factor: 3.5"
- Workload Rating: Up to 550TB per year
- Technology: HelioSeal
- Vibration Protection: Rotational Vibration Safeguard (RVS)
Key Features
Designed with a workload rating up to 550TB per year, 10X desktop rating (Workload rate is defined as the amount of data transferred to or from the hard drive; Workload Rate is annualized (TB transferred X (8760/ recorded power on hours); Workload Rate will vary depending on your hardware and software components and configurations
Power Disable Feature, adapter cable included for compatibility with any SATA system
Five generations of HelioSeal technology (10TB and above)
Rotational Vibration Safeguard (RVS) technology for vibration protection
Zero Power On Hours
Specifications
Capacity
12TB
Interface
SATA
Workload Rating
Up to 550TB per year
Technology (10TB+)
Five generations of HelioSeal
Vibration Protection
Rotational Vibration Safeguard (RVS)
Condition
Renewed
Power On Hours
Zero
Included Accessory
Power Disable Feature adapter cable
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View on Amazon →Frequently Asked Questions
What is the workload rating of this Western Digital Ultrastar DC HC520 HDD?
This HDD is designed with a high workload rating of up to 550TB per year, making it suitable for demanding data center applications, which is 10X a desktop rating.
Does this renewed hard drive come with any special features for compatibility?
Yes, it includes a Power Disable Feature adapter cable to ensure compatibility with any SATA system.
What is HelioSeal technology and is it present in this drive?
HelioSeal technology is a design feature that uses helium to reduce drag and turbulence, improving power efficiency and reliability. This 12TB model benefits from five generations of HelioSeal technology.
Is this a new hard drive or a refurbished one?
This Western Digital Ultrastar DC HC520 12TB SATA HDD is a renewed product, tested and certified to work like new, with "Zero Power On Hours."
How does Rotational Vibration Safeguard (RVS) technology benefit the hard drive?
RVS technology provides enhanced protection against operational vibrations, which is crucial for maintaining consistent performance and reliability in multi-drive environments like servers.
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