iMac Retina 27" 5k - VESA MOUNT !!! ***
Here is a quick solution to mounting your 2012 up to current model iMAC computers via VESA MOUNT. After 2012 the foot stand on the iMAC is no longer removable. You have to purchase the current model with or without it. I need more space and recently got rid of the rack mount it was sitting on for space but I found the mac to be too high even when tilted. This works well just be sure to have a strong enough stand as this computer can be a bit heavy. At first glance the computer looks strange sort of like its floating. If you use it as a shelf and put something there it looks more like a shelf than a stand.
Here is an Amazon Link ( its my affiliate link so if you do not want to participate you can visit Amazon directly and search for iMac vesa)
https://amzn.to/2IOslIg
HERE ARE SOME EBAY LINKS:
http://www.ebay.com/itm/VIVO-Adapter-...
http://www.ebay.com/itm/VIVO-Adapter-...
www.HowToAndReviews.com