Review on 📺 Mount-It! Landscape to Portrait Rotation TV Wall Mount Bracket, Low-Profile for Samsung, Sony, Toshiba, Sharp, LG, Element, Westinghouse, TCL 32-60 Inch (Some 70') TVs, 110 lbs by Maurice Ford

I gave this one five stars because it worked well for me. However, some homework was needed. Your circumstances may be very different. I had to make a few changes, but this adapter works great for me on a 32" Smart TV that I use as a second monitor for my laptop. You can use a horizontal strip holding the vertical strips. separately for the template 200 x 100. Simply drill holes in the 200 mm wide and 100 mm high board and center them correctly. You can then support a small TV with a 200x100 stencil. As others have said, there is a lot of play in the 90 degree "locks". But you can handle it without adding friction for a small, lightweight display. For large or unbalanced displays, you should be able to create friction with wedges. Or you can create "struts" to hold the device in place. I attached this mount to a floor stand on wheels, not a wall. To do this, a hole had to be drilled in the floor stand adapter. But with the right hardware (#10 screws and bolts and 1/4-inch washers), the setup gives me a monitor that's easy to move around the room and rotate to any viewing angle, landscape, portrait, or anything in between. You may need to get creative to get some configurations to work, and you can purchase additional iron drills. But this was the only solution I could find to get what I needed and it works great for me.