Go Green with Fantom's GreenDrive!. 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%.