The VESA mount size compatible with your TV is 200 x 200 mm (8 x 8 inches). The VESA mount is the standard interface at the back of the TV that allows you to attach it to a wall mount or stand. The first number refers to the horizontal distance between the mounting holes, and the second number refers to the vertical distance between the mounting holes. In your case, the distance between the mounting holes on your TV is 8 inches horizontally and 8 inches vertically.