The Toshiba drive isn't the fastest external drive around, but it more than makes up for what it lacks in speed on portability and ease of use. Typically, with external hard drives you need to plug them into a USB port to interface with your PC and plug them into the AC outlet to power the drive itself. Toshiba used a very power efficient notebook drive that can draw all of the power it needs directly from the PC USB port.



Link: I4u