The MB671SK-BB is the first and many of Icy Dock?s internal screwless enclosure. It provides the user with tray-less, easy hard drive access and hot-swap capabilities without having to screw in a tray. The enclosure is built spacious enough to fit any 3.5? SATA brand hard drive, and firm enough to prevent the hard drive from coming loose with the connectors. With its stylish faceplate exterior and elegant trigger door-handle design, the series brings convenience and fashion to hard drive peripherals. With this new enclosure, exchanging data and information can be done with ease and buying new hard drive doesn?t have to mean going through an exhaustive process with a screwdriver. A set of hard drives will allow a user to organize them in categories of pictures, videos, and other data without having to purchase trays and will be able to use them instantly by just plugging in the hard drive into the enclosure. Exchanging drives is now virtually hassle free!