How can I connect my old Apple Thunderbolt display to my iMac 5k 2017 USB-C ? Do I need the very expensive Apple adapter or there is some competition around? I looked around but couldn't find any so far, a lot of mini-display connectors but I'm not sure it will work with my Thunderbolt Display. Plus in case it works, will I be able to use the ports available on the old Apple Thunderbolt display? This would be cool. Did anyone try yet ?