HP portable SimpleSave is best product of all the products. I like it because this is attractive for all and their stylish & work very good. the hp portable hard drive is perfect for extra plug and play storage and backup. in their future USB 3.0 to a USB 2.0. The hp portable hard drive is backward compatible with usb 2.0. Their height is 2.5 in and weight 0.7 lb.And two year manufacture warranty.