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Laying the foundation for a worry-free data center, Western Digital delivers capacity to conquer the data explosion – Ultrastar® DC HC520, previously known as Ultrastar He12 and part of our HC500 series of helium-filled hard drives. Designed to handle workloads up to 550TB per year, the Ultrastar DC HC520 is the industry’s first 12TB drive and uses traditional perpendicular magnetic recording (PMR) technology to make it dropin ready for any enterprise-capacity application or environment.

• 12TB capacity1 in a standard 3.5-inch form factor
• PMR technology works with all capacity enterprise applications & environments
• Reliable, field-proven, 4th generation design
• Outstanding power efficiency (Watts/TB)
• Compared to 8TB Ultrastar air drives —50% more capacity —52% more power efficient (Watts/TB) —25% more reliable (MTBF)
• SATA 6Gb/s and SAS 12Gb/s —12Gb/s SAS compatible with next-gen data centers; backwards compatible with 6Gb/s SAS
• 2.5M hours MTBF2 rating & 5-year limited warranty
• Instant Secure Erase (ISE) & Self-Encrypting Drive (SED) options
• Advanced Format 4Kn and 512e models