What is a Recertified Drive? WD recertified products may consist of customer return units & may have been repaired. ALL recertified products are stringently tested & determined to meet WDs stringent quality standards before they are distributed for sale. Please note that some recertified items may not be cosmetically mint condition & may have scratches or marks What is the warranty on a recertified drive? Ebuyer will support all Recertified Hard Drives with a 90 day warranty 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 & the right balance of system performance, ensured reliability, & energy conservation. Reduced power consumption WD has reduced power consumption by up to 40 percent compared to standard desktop drives with the combination of WDs Intelli Seek, No Touch, & Intelli Power technologies. Helps 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 & the right balance of system performance, ensured reliability, & energy conservation. Cool & quiet WD Green Power Technology yields lower operating temperatures for increased reliability & low acoustics for ultra-quiet PCs & external drives. Perfect 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 & quietest in its class. Intelli Power A fine-tuned balance of spin speed, transfer rate & caching algorithms designed to deliver both significant power savings & solid performance. Intelli Seek Calculates optimum seek speeds to lower power consumption, noise, & vibration. No Touch ramp load technology The recording head never touches the disk media ensuring significantly less wear to the recording head & media as well as better drive protection in transit. Perpendicular Magnetic Recording (PMR) Employs PMR technology to achieve even greater areal density. 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 & increased reliability.