WHAT IS VESA
Simple answer about : What is the VESA Standard?
The VESA Interface Standard defines the distance in millimeters between the four mounting holes on the back of a TV or Screen/Display (distance horizontally x distance vertically). VESA is a standard used for TV wall mounts and wall mounting systems, adapted by most TV brands. Common VESA sizes are 200 x 200, 400 x 400 and 600 x 400 depending on the screen size of your TV.
You can CHECK the specifications in the product manual but perhaps the easiest way to find out the VESA size of your TV is just by measuring it. Find the 4 HOLES in the back of your television, And measure these from left to right and from top to bottom. Now you know the horizontal and vertical distance, between the holes and therefore the VESA size of your TV.
The underneath diagram shows you where you need to measure:
ALSO an EXAMPLE about the VESA system and looking from the side of the STAND you are interested in
Also note that YOU NEED to check the description, ensure is the right stand for the SIZE of your tv and that can take the load of it.
Many times VESA can fit but the stand is not made to hold the weight of the particular Brand Tv , screen, or display you will attach to it
Ensure dimensions of tv- dimensions between holes and load capacity
Always is better to ask if in doubt before making an order
Simple answer and to the point- Thanks for the nice explanation and saving me from hours spent on silly queries in google