It worked!
Looks like the key is to go [DVI-HDMI-USBc], not [DVI-MiniDisplayPort-USBc]
What size ACD is that pictured? a 23" ACD or 30" ?
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I have tried two USB-C to Mini DisplayPort adapters that work with the 30" ACD when paired with Apple's Dual DVI to Mini DisplayPort adapter.
https://www.amazon.com/Nearpow-Disp...&qid=1480922356&sr=8-2&keywords=nearpow+usb+c
https://www.amazon.com/gp/product/B01CJHHTR8/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1 (currently out of stock)
Are you sure both of these works with an Apple 30" ACD? as neither state they can drive 2560 x 1600
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