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 capacities and the right balance of system performance, ensured reliability, and energy conservation.\n\nReduced power consumption - WD has reduced power consumption by up to 40 percent compared to standard desktop drives with the combination of WD's IntelliSeek™, NoTouch™, and IntelliPower™ technologies.\n\nHelps enable eco-friendly PCs - WD Caviar Green drives yield an average drive power savings of 4-5 watts over standard desktop drives making it possible for our energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.\n\nCool and quiet - GreenPower™ technology yields lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives.\n\nMassive capacity - Capacities up to 2 TB offer the most available capacity for storage-intensive programs and space-hungry operating systems, like Window Vista®, with plenty of room left over for photos, music, and video.\n\nPerfect for external drives - External drive manufacturers can eliminate the need for a fan in a high-capacity product with a WD Caviar Green drive, the coolest and quietest in its class.\n\nIntelliPower - A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings and solid performance.\n\nIntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration. View demo >\n\nNoTouch ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.\n\nPerpendicular Magnetic Recording (PMR) - Employs PMR technology to achieve even greater areal density.\n\nStableTrac™ - The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations. (2 TB models only)\n\nLow power spin-up - WD Caviar Green drives consume less current during startup allowing lower peak loads.\n\nAdvanced power technology - Electronic components deliver best-in-class low power consumption for reduced power requirements and increased reliability.\n\nIdeal For\nEnvironmentally friendly PCs and external storage requiring lower power consumption and cool, quiet operation.