The combination of WD's IntelliSeek, IntelliPark, and IntelliPower technologies bring optimized performance at industry leading low power consumption to the 1TB WD RE2-GP SATA 3Gb/s Internal Hard Drive as power is reduced as much as 40%. A GreenPower Drive, its IntelliPower technology provides a fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance. Additionally, it consumes less current during start up allowing more drives to spin up simultaneously resulting in faster system readiness. Its IntelliSeek engineering calculates optimum seek speeds to lower unnecessary power consumption, noise, and vibration and IntelliPark delivers lower power consumption by automatically unloading recording heads during idle to reduce aerodynamic drag, and by disengaging read/write channel electronics. In the end it will help eco-friendly servers for you, the energy-conscious customer.