G-Force GreenDrive line of external USB and eSATA disk drives feature the latest advances in power saving technology and ROHS (Restriction of Hazardous Substances Directive) compliant materials and process. The G-Force Green Drive gives the consumer the ability to minimize his or her carbon footprint without sacrificing performance. Fantom Drives GreenDrive USB 2.0 Hard Drives are a power conscious step forward to provide maximum capacity and performance while reducing power consumption by up to 40%. The G-Force GreenDrive USB 2.0 Hard Drive family feature sturdy aluminum casing to provide maximum durability, fanless design for silent operation, and could be placed horizontally or stand vertically to allow maximum deskspace. Fantom Drives GreenDrives yield 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.