I bought one of these a couple of months ago in blue to backup my business documents onto in case of loss of the data on my laptop and i must say im very impressed by such a great bit of kit. It is available in many colours with the obvious ones including blue green and red. The design is very sleek and modern while kind of looking like a large pc mouse but without the buttons. It is very light and quiet while containing air vents at the side to keep the accessory cool over long periods of use. It does not need plugging in at the mains as it is connected by a high speed usb cable which automatically turns the harddrive on upon connection to a usb port. The only problem that i have had is that the usb port of the hardrive has once found itself slide back into the inside of the casing which stopped me from connecting the usb cable. This problem was quickly solved as it can be easily accessed by openeing the case, moving the usb port forward and tightening the screws to hold it in place. Overall I would recommend this product to all of those who are looking for extra external strorage space for their laptop or pc.