Western Digital Caviar GP 1TB SATA/300 IntelliPower 16MB Hard Drives Based on WD's exclusive GreenPower platform these are the first 3.5-inch hard drives designed to deliver power savings as the primary attribute As hard drive capacities increase, the power required to run those drives increases as well 1TB hard drives currently available have a typical power consumption rating greater than 13.5 watts WD Caviar GP drives yield average drive power savings of 4-5 watts Ensured reliability, and energy conservation