Happ Controls Power Pro (P/N 80-0002-10) 1| +5 Volts Red Wire 2| +5 Volts Red Wire 3| +5 Volts Red Wire 4| Ground Black Wire 5| Ground Black Wire 6| Ground Black Wire 7| -5 Volts White Wire 8| +12 Volts Yellow Wire 9| -12 Volts Blue Wire Visual pin layout: 1 4 7 2 5 8 3 6 9 ^ ^ ^ | | | All Red-+ | | All Black-+ | | White/Yellow/Blue