Computer Compatibility - To ensure compatibility of the dual monitor stand, each of your monitors must meet three conditions: Firstly, computer screen size range: 17 to 33 inches. Secondly, screen weight range: 4.4 to 22 lbs. Thirdly, there must be VESA mounting holes on the back of the monitor screen that are spaced 75x75 mm or 100x100 mm apart. Please make sure that your monitor meets all of the above conditions before purchasing. Maximum Flexibility - The monitor stand features +/-90° left and right swivel for multi-screen co-driving, +90° to -35° up and down tilt for your office comfort, and 360° swivel for landscape and portrait modes. Height & Extension Adjustment - The dual monitor arm for 2 monitors can be positioned as high as 17.5 above the desk surface, allowing you to raise your screens closer to eye level for more comfort. The flexible arms can extend the screens 17.5 closer to you for a more immersive viewing experience. Easy to install - The structured monitor st