Review on Mount-It! Dual Monitor Mount - Double Monitor Desk Stand with Full Motion Arms - Fits 17-27 Inch Computer Screens - VESA Compatible 75 and 100 - Includes C-Clamp and Grommet Base - Silver by Charles Barlow

Some reviews say you need to be careful as it will not fit a 27" monitor and this is clearly stated on the packaging. I just received mine today and the box clearly says 13"-27", don't know what happened to other buyers. I am planning to install 2 ASUS ROG SWIFT PG278Q 27 inch monitors with this one. Once I have the second monitor and have everything set up and installed I will post another picture showing how well they fit. At the moment it's 5 stars. Installed both 27" monitors and they look great. They are easy to move, keep monitors in place and free up a lot of desk space. Still a 5 star product. Here's a photo of how it looks put together.