Added Stability: Featuring durable double C-clamp mounting, UPGRAVITY triple monitor mount is able to distribute the weight of 3 monitors more evenly, which can help reduce the risk of wobbling or sagging. Please rest assured your larger and heavier displays will keep in place firmly on our triple monitor stand; fit desk thickness 0.39"-3.54" Wider Compatibility: The 3 monitor desk mount fits most flat or curved PC monitor brands with screen size of 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 inch. It is compatible with VESA pattern 75 x 75mm and 100 x 100mm. Please note: if there are no VESA holes in the back of your monitor, a VESA adapter is needed