I bought this stand for my new 35'' ultrawide monitor to get it farther back on the table. 50 Centimeters deep, the table was definately too narrow for a screen this size.My tables back is L shaped so this mount was perfect because you can unscrew the clamp. So I drilled four holes to my desk and used the old clamp as a backplate. So far so good. Only problem is that the security knob of the vesa mount can barely hold the screen in place because of the weight.