Simple and effective chassis. The disc that goes up properly, even if all the screws are not easy to place. THE chassis simply slides into the slot for DVD player, for cons there is no screw to secure it inside the PC that have surprised me. The screw at the back of the DVD player is a standard normally. That said once assembly is complete it is not moving. Perfect for 2 disk, in my case a Win and Linux. The price is not bad compared to the competition. Nothing to add.