Fantom Drive's GreenDrive USB 2.0 and eSATA disk drive features the latest advances in power saving technology and ROHS (Restriction of Hazardous Substances Directive) compliant materials and process. Fantom Drive's GreenDrive USB 2.0 and eSATA hard drive is a power conscious step forward in providing maximum capacity and performance while reducing power consumption by up to 40%. The Fantom Drive's GreenDrive USB 2.0 and eSATA hard drive features a sturdy aluminum casing for maximum durability, fan-free design for silent operation, and can be placed horizontally or vertically to increase deskspace. Fantom Drive's GreenDrive yields an average drive power savings of 4-5 watts over competitors' drives while maintaining solid performance. That power savings equates to reducing CO2 emission by up to 60 kilograms per drive per year – the equivalent of taking your car off the road for 14 days each year, and saving up to $14 per year in electricity costs depending on the power-on-hours.