This portable external hard drive by LaCie is a great addition to your tech collection. It has a storage capacity of 640GB and is compatible with both PC and Mac devices. The Big Disk USB 2.0 model comes in a sleek silver colour and features a heatsink for improved performance. The interface of this external hard drive is USB 2.0 and it comes with a power adapter and lead for easy use. It belongs to the Big Disk product line and is perfect for storing all your important data. Purchase this reliable and efficient device for your storage needs.