Minimum / Maximum
This passes on the minimum or maximum value of multiple input values.
You can change if the minimum or the maximum of all values should be used in the settings.
Let's say you have "minimum" selected, and three of the in ports are attached to other green ports of input modules. If for example the value sent to in2 is smaller than the other values, the value of in2 will be sent out through the "general" output port and additionally through the out2 port. All other output ports will be silent.
Example use case: Create two Hand Tracking modules and set one of them to use hand index 2, so that both hands are tracked. If you now connect the distance port of hand 1 to in1 of the Min / Max module, and the distance port of hand 2 to in2, then the general output port will always use the value of the hand that is closer to the device as output, and ignore the other one (if the module is set to use the minimum value, not the maximum one).
Ports:
The input values used to compare to each other.
The output values matching the input ports. These only send anything if their matching input ports are the current minimum / maximum.
This always sends the current minimal or maximal value of all the input ports.