Built for the most demanding enterprise applications, this dual branded Dell/Western Digital (Formally HGST Ultrastar DC HC520 HUH721212ALE600 is a 12TB, 7.2K RPM internal hard drive engineered for capacity-optimized data centers. With a SATA 6Gb/s interface and a 256MB cache, this 3.5-inch drive delivers the performance needed for massive scale-out infrastructures, big data analytics, and centralized video surveillance systems. The HC520 leverages HGST’s innovative helium technology, a helium-sealed design that reduces air turbulence and power consumption. This allows for more platters in a standard 3.5-inch form factor, increasing capacity while boosting reliability and energy efficiency. With a 2.5 million-hour Mean Time Between Failures (MTBF, this drive provides the durability required for uninterrupted 24/7 operation in high-workload data center environments. Whether you are building a hyperscale storage solution or a distributed file system, the Ultrastar DC HC520 HUH721212ALE600 offers a cost-effective, high-capacity, and power-efficient storage solution that you can trust.

Features

• 12TB Capacity in a 3.5-inch form factor
• PMR technology works with all capacity enterprise applications & environments
• Outstanding power efficiency (Watts/TB
• 2.5M hours MTBF rating
• Dell/Western Digital Dual Label. Works in any system, not limited to Dell systems

Specifications

hard_drive	12 TB Mechanical Hard Disk
brand	Western Digital
series	Ultrastar DC HC520
item_model_number	HUH721212ALE600
item_weight	1.68 pounds
package_dimensions	8.78 x 6.1 x 3.11 inches
hard_drive_interface	Serial ATA-600
hard_drive_rotational_speed	7200 RPM
manufacturer	Dell
asin	B0FWFDXQX9
date_first_available	October 15, 2025