Apple VESA Mount Adapter Kit for iMac and LED Cinema or Apple Thunderbolt Display (MD179ZM/A) With a tool in this kit, you can remove the iMac or display stand and attach the VESA Mount Adapter. Then connect any VESA-compliant mounting solution with a 100 mm x 100 mm attachment. With the VESA Mount Adapter attached, your computer or display complies with the VESA MIS-D, 100, C version specification. Compatible with 24-inch iMac (aluminum and glass), 27-inch iMac (late 2009, mid 2010 and mid 2011), 24-inch LED Cinema Display, 27-inch LED Cinema Display and 27-inch Apple Thunderbolt Display.