I made this post on my site here: https://underground.net/how-to-connect-an-apple-display-to-a-usb-c-macbook/ (Which I will update periodically)

This setup took me a LONG time to figure out, but it works great, no waking from sleep mode, etc.

To connect the new MacBook to an Apple 24″ Cinema Display or Apple 27″ LED Display (which both have a plug that is the same as the Thunderbolt connector, but are not actually Thunderbolt displays) you can opt for a really cheap option like the following item AllSmartLife USB 3.1 Type C to Mini DisplayPort Adapter from Amazon for $20:

Which works great, but you cannot charge your computer while connected to the display, nor can you plug anything else into your computer like an external hard drive, etc.

To be able to charge your computer AND connect to the display AND connect other devices to your MacBook you need the following setup, and it works great, btw.

1 First get this USB-C to USB Multiport Adapter, Belinda® USB-C to 3-Port USB 3.0 which is around $36 on Amazon.

2Next you need an expensive item, the StarTech.com USB 3.0 to DisplayPort 2560 x 1600 External Video Card Multi Monitor Adapter (USB32DPPRO) which is around $74 on Amazon:

3Finally you need a cheap item, the Cable Matters DisplayPort to Mini DisplayPort Male to Female Adapter at $9 on Amazon:

Plug all this stuff in and it ends up looking rather clean where it connects to the computer as you can see below, and you can plug the USB port from the display into the hub and use the speakers on the display, AND you still have a USB 3.0 port available for an external hard drive.

It will set you back around $119! Wow, that’s a LOT, but it works. Or you can go cheap and just get the first adapter for $20 but charge your MacBook by unplugging it periodically to plug in the charger. What a PAIN in the *** Apple.

The upcoming new MacBooks will have a combined Thunderbolt/USB-C plug which should *hopefully* make plugging in a display and charging at the same time less expensive, but who knows?!