A:Answer Your wall mount is likely 200 x 200 mm. There are adaptors available that can extended the 200 x 200 mount to 300 x 300, etc. I got mine on Amazon. Don't bother contacting the support mentioned in previous answer, they are TOTALLY worthless. Apparent ROKU support is outsourced overseas and these folks try, but know very little and are rude and hard to understand.
