Via: http://nintendoeverything.com/first...ames-australia-system-may-use-usb-c-charging/
https://ebgames.com.au/nintendo-nx-...-Extra-Long-3m-Charging-Cable-Nintendo-Switch
USB-C for Switch as good as confirmed.
https://ebgames.com.au/nintendo-nx-...-Extra-Long-3m-Charging-Cable-Nintendo-Switch
USB-A to USB-C Charging Cable compatible with the Nintendo Switch Console.
Cable Length = 3m
USB-C for Switch as good as confirmed.