This is the Walkera UP02 upgrade tool. It can be used to update the firmware on the DEVO 7 transmitter and on selected Walkera all-in-one control boards/flight controllers.
The UP02 will allow you to update the control board firmware of the QR X350 quadcopter as well.
UP02 USB interface cable
That Thing does defently NOT WORK with any walkera receiver. You cannot choose anything in the program. Also I tested 2 other of same UP02, they also did not work with receiver firmware upgrade! Trash pure!!!!Good price if you have other stuff to buy.