Connect New MacBook 2017 (USB-C) to Apple Cinema Display 30" (DVI)
Just wanted to pass on that today (Dec. 16, 2017) I successfully ran my 30" Cinema Display from my 2017 MacBook Pro at full 2560 resolution using a combination of these two adapters:
https://www.amazon.com/gp/product/B00A493CNY/ref=oh_aui_detailpage_o00_s00?ie=UTF8&amp;psc=1

https://www.amazon.com/gp/product/B073ZZ46M9/ref=oh_aui_detailpage_o00_s01?ie=UTF8&amp;psc=1

It's very important to remember to plug the USB connector from the Dual Link DVI connector into a power source. Apparently that's what powers the adapter. It wasn't working until I made that connection.