Enterprise-Class Capacity and Reliability The Constellation ES drives offer an impressive 2TB of storage capacity, making them the perfect choice for Tier 2 and nearline environments. But it's not just about the size - these drives are designed with enterprise-class reliability in mind. Superior Data Integrity With a UER (Unrecoverable Error Rate) of 1E10-15, these drives provide unparalleled data integrity. This means your data is protected from errors and corruption, giving you peace of mind and confidence in your storage solution. Robust Protection from Vibrations Unlike 3.5-inch desktop drives, the Constellation ES drives are built to withstand the rigors of an enterprise environment. With a rotational vibration tolerance of 12.5 rad/sec 20 to 1500Hz, these drives can handle chassis and fan vibrations with ease, ensuring your data remains safe and secure. Flexible Interface Options Choose between a 3-Gb/s SATA interface or a 6-Gb/s SAS 2.0 interface for superior data protection and industry-leading speeds. Whichever option you choose, you can rest assured that your data is being transferred at lightning-fast speeds. Optional 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 customize your power usage and save on energy costs, making these drives not only a smart choice for your data storage needs, but also for your budget.