Designed for Apple iMac: This patented VESA adapter kit is specifically design for Apple iMacs with 21.5 and 27 displays. Fits late 2009 to 2020 models, including the 5K Retina Display. Note: compatible with the 24' M1 model Stable Mounting: Designed to hold the weight and scale of an iMac display, this adapter is compatible with stands featuring 75x75mm or 100x100mm mounting patterns