StayGo mini
StayGo mini USB-C Hub makes editing video and photos or polishing presentations on your iPad Air or iPad Pro much more convenient. How? By giving you four more ports to get things done. With a headphone jack, USB, USB-C and an HDMI port, you can connect and power your most essential accessories. Connect StayGo mini directly to your iPad or use the included 19-inch long cable to place the hub below your Magic Keyboard or HoverBar Duo. Maximize the power of your iPad with a StayGo mini... More here.
A decent idea and it looks like it is well implemented. Pricey, but a good way to utilise more of the power in the newer iPads that iOS sometimes hides a little too well.