This Fractal Design Define R5 is not the first Define R5 to be assembled. There have been others before it and they are the Mid-tower silent partner series of the Fractal Design Label. The Fractal Design Define R5 is made for the addition of plenty of parts, custom and not so custom, all in one units, but also it is made for less noise, deadening vibration, and built to a high of standard of quality and excellence in and out that seem to defy their economical prices. An example is the Power Button looks like it belongs to a luxury car and the outer steel and inner insulation is hefty and you know by just having these parts in your hand that you are not just picking up some cheap lightweight panel cover. The steel panel is heavy and the window is beautifully clear and the isolation is thorough but not interfering even in cable management which is a trade off most take in stride when buying a quiet and insulated case.