This page covers any general information for the Fly-Pi board.
It is currently available through AliExpress.
Maximum Input voltage
The board power line in can handle voltage up to 24v.
The board that you will receive doesn’t have any firmware installed so when plugged into a computer, the board will show as an unidentified device. Follow the SD card instructions to build an SD card with Fly OS. If you have purchased the optional M2WE 16G eMMC & 5G Wifi board it will come with the FLY OS pre installed on the M2WE.