The bumper is ridiculously low. 17 My PC "slipped twice the risk of being damaged. To overcome this disadvantage, it is sufficient from the manufacturer to raise the few mm. Also on the 5 colored locking notches (a good idea! ) one does not, hence new risk incident ... After several unsuccessful attempts, I put the bracket upside down and have thus found an acceptable position not envisaged by the designer. My objective conclusion : low price for a poorly designed hardware.
