Reduced 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.
Cool and quiet - GreenPower technology yields lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives.
Low power spin-up - WD Caviar Green drives consume less current during startup allowing lower peak loads.
Advanced power technology - Electronic components deliver best-in-class low power consumption for reduced power requirements and increased reliability.
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Newegg.com - Western Digital Caviar Green WD15EADS 1.5TB 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Western Digital Caviar Green 1.5TB 32MB Cache Hard Drive @ Newegg $110 Shipped 
