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 32 inches. Secondly, screen weight range: 4.4 to 22lbs. 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.