We are a rookie foster team and we recieved an old Roborio from a team that closed down. When we tried to image to our rio were were unable to connect to the rio. The power lights were lit up and the only error message we received was on the computer when we plugged in the USB-B, the computer gave a warning that the connected device was drawing too much power. We tried several computers and cords and wifi box and were never able to connect to rio. We borrowed another rio from a local team and ot worked fine so we know that everything else we had works.