Micronet Fantom Drives GreenDrive3 3TB External Hard Drive: * 110/220V power supply * 64MB buffer * USB 3.0/2.0 * Compatible with Mac OS X 10.5 or later, Windows Vista/7 * Power saving technology * Includes hard drive, USB 3.0 cable, power cord, drive stand and user manual * Fan-free design for virtually silent operation * Sturdy aluminum casing * Stored horizontally or vertically to optimize