Ebay offers Open-Box Apple USB-C Digital AV Multiport Adapter for $19.55 (reg $69) after code with free shipping.

Apply Code: SCORESAVINGS

Product Description:
The USB-C Digital AV Multiport Adapter lets you connect your USB-C-enabled Mac or iPad Pro to an HDMI display, while also connecting a standard USB device and a USB-C charging cable.

• The USB C digital AV multiport adapter lets you connect your USB C enabled Mac or iPad Pro to an HDMI display, while also connecting a standard USB device and a USB C charging cable.
• This adapter allows you to mirror your Mac Display to your HDMI enabled TV or display.
• Simply connect the adapter to a USB C or Thunderbolt 3 (USB C) port on your Mac or iPad Pro and then to your TV or projector via an HDMI cable (sold separately).
• Use the standard USB port to connect devices such as your flash drive or camera or a USB cable for syncing and charging your iOS devices.
• You can also connect a charging cable to the USB C port to charge your Mac or iPad Pro.
• 1080P at 60Hz or UHD (3840 by 2160) at 30Hz on: MacBook Pro (13 inch), MacBook Pro (15 Inch, previous model), iMac (21.5 Inch, previous model), and Mac Mini