Case for 2.5 "drives up to 12.5mm thick. I used to replace the case of a Toshiba STORE Basics 1TB USB 3.0 (also purchased from Amazon). A big advantage of this camera is that it uses a full-size USB connector (classical) rather than a mini USB. This is much more solid. Also, if the computer does not deliver enough current to power the drive, there is an additional USB power cable. Installation is very easy: You open the lid, the lid is plugged with the hard drive, are reassembled everything and is screwed with 2 screws and screwdriver provided. Perfectly recognized UX32VD Asus Windows 8.1, compatible USB 3.0 speeds In short, completely satisfied.