HelioSeal Delivers Twice the Capacity Using One-Quarter Less Power. One-third more capacity and 23% lower energy consumption. Available today. That's the power of helium. Delivering the industry's leading capacity at 6TB, Ultra star He8 is based on the widely accepted and proven HelioSeal platform. HelioSeal technology replaces air with helium inside the drive, reducing air turbulence and enabling 7Stac, a seven-disk design in a traditional 3.5-inch form factor. Ultra star He8 goes beyond what any air-based HDD can do and seamlessly integrates into virtually any mainstream enterprise environment. Cooler and quieter with industry-leading power efficiency (Watts/TB) and no-compromise performance, the Ultra star He8 lays the foundation for future growth in massive scale-out environments. TCOptimized - Increasing Storage Efficiency to Drive Down Data Center TCO. Ultra star He8 provides the best TCO value proposition and delivers greater storage efficiency with breakthroughs in capacity, power efficiency and best-in-class performance. This latest HelioSeal hard drive achieves up to 3X higher random write performance than the prior generation , Ultra star He6, thanks to HGST media cache architecture, a disk-based caching technology. He8 offers a 12Gb/s SAS (6Gb/s SATA) interface for easy integration into high performance data centers. New features like Rebuild Assist dramatically reduce RAID rebuild times and maintain system performance during the rebuild process. Data Security with Industry-Leading Quality and Reliability. Compliance and privacy requirements drive the need for increased data security. Ultra star He8 offers security and encryption options to protect data from unauthorized use. Instant Secure Erase (ISE) models expedite drive redeployment and retirement. Encryption models protect data with hardware-based encryption, including a Trusted Computing Group (TCG) option with FIPS 140-2 certification, Level 2.