As hard drive capacities increase, the power required to run those drives increases as well. WD Caviar Green drives make it possible for energy-conscious customers to build systems with higher apacities and the right balance of system performance, ensured reliability, and energy conservation. Western Digital Caviar Green WD7500AZRX 750 GB 3.5" Internal Hard Drive - SATA/600 - 7200 rpm - 64 MB Buffer
