Its purpose was more bad than good satisfies the installation kit. The screws that you normally is screwed drives you can plug in here. The threads are so poorly laid out that you can not even call it even more threads. The good-natured Dell case it is thanks to them that the hard drive halfway sitting securely in the 5.25 inch bay. Therefore the parts remain now in the PC ... with vibrations can be expected, but they keep me in check. Only when "starting" is the hard drive (Seagate Barracuda 7200 rpm) out loud. Installation of the adapter to the hard disk is quite easy with the right tools. The threaded insert for thankfully in the hard disk ...