At the two heat sink a XL4016 (8A 180kHz 40V Buck DC to DC Converter) of XLSEMI are mounted on one side, on the other hand, a Schottky diode R2045. In datasheet XL4016 one finds among other things the circuit, which was implemented with this module mainly. Was added a trim pot instead of the resistor from the feedback connection to the starting-Plus, with which the voltage is set. However, a higher voltage than the input voltage is not possible. The entrance is protected by a 15A fuse. At the exit, a green LED that lights up brightly but recognizable only from about 5V output voltage is.
A small difference between the pictures and my module strikes me even more: On the output side, the terminals and the FAN connector unused arranged vice versa.
