Best Buy: Dell USB-C Mobile Adapter DA300 6-in-1 Adapter Type C Laptop Compatible Dock and Adapter Black DA300
Dell USB-C Universal Mobile Adapter - DA300 - YouTube
Dell Adapter USB-C to HDMI/DP/USB-C with Power Pass-Through Adapter - 24 pin USB-C (male), 7.1 cable, 3840 x 2160, black - DBQAUANBC070 at TigerDirect.com
Dell USB-C Mobile Adapter - DA310 User Manual - Manuals+