High Capacity and Enterprise Robustness The Constellation ES drives offer an impressive 2TB of storage capacity, making them the perfect choice for Tier 2 and nearline environments. But these drives are more than just big - they also provide enterprise-class reliability and superior data integrity, with a UER (uncorrectable error rate) of 1E10-15. Differentiated from Desktop Drives What sets the Constellation ES drives apart from standard 3.5-inch desktop drives is their enterprise-level features. These drives are designed to handle the demands of business environments, with rotational vibration tolerance of 12.5 rad/sec 20 to 1500Hz. This means they can withstand vibrations from chassis and fans, ensuring your data remains safe and secure. Flexible Interface Options The Constellation ES drives are available with either a 3-Gb/s SATA interface or a 6-Gb/s SAS 2.0 interface. Both options offer superior data protection and industry-leading speeds, so you can choose the one that best suits your needs. Power Saving Modes In addition to their impressive performance and reliability, the Constellation ES drives also offer optional power saving modes with PowerChoice. This allows you to optimize your energy usage and reduce your overall costs, without sacrificing performance.