Universal Designs:The VESA mount adapter plate extends the mounting range of your existing mount. Provides a solution for when you want to extend the range of VESA holes Steel VESA Mount Adapter Plateallows 50x50mm, 75x75mm, and 100x100mm VESA mounts to fit 200x100mm, 200x200mm, and 400x200mm VESA hole patterns Sturdy Construction: High quality steel provides greater stability, allowing this sturdy bracket plate to hold up to 66 lbs Compatibility: This VESA adapter plate is suitable for 32"-55" monitors or TVs.Dimensions: 16.5"x8.7" (Dimensions: 420x220mm) Easy installation: Installation instructions and standard hardware kit included