The ThinkCentre X1 VESA Mount has a unique design that is specifically for the ThinkCentre X1 AIO system. You could use this VESA Mount with the X1 AIO system and Lenovo stands/arms, using the 100 x 100 mm VESA hole to adjust the height and angle of the X1 system. It provides extreme flexibility for your ThinkCentre X1 AIO.