It's 12.3cm from desk to bottom of monitor. This is as high as I can mount it, and that's fine as it positions the monitor at the right height for my head. Gives enough clearance from desk to put a few bits underneath it. No noticeable wobble, both the mount itself and the TV as mounted feel solid. Wish I'd gone for one with a matt base though rather than glass (bloody dust, maybe I should hoover more). I'll admit the tempered glass does look good though, and matches the border of the monitor.