I have Amb 8800 with Amb20 convertor with transponders and charging rack. We have not used this system in 4 years when the hard drive crashed on computer. I plugged up transponders and they were all taking charge. I know you will need desktop computer and counting software(think LapsFree will work).
This does not work with personal transponders!
Send me your email and will send pics tommorow when I get home and will try to post more info too(think there is 10 transponders but not sure).
Spyda76@yahoo.com
$350.00 shipped to 48 United States