The present disclosure relates to a configurable modular card. The card comprises a board, at least one processor and at least one memory on the board, a configurable input/output unit comprising a plurality of configurable inputs and outputs, a bus for providing electronic data exchange there between, and a power supply comprising a plurality of configurable power supply circuits. The configurable input/output unit has a predefined output for sending a broadcast message and a predefined input for receiving a broadcast response message. The processor configures the plurality of inputs and outputs of the configurable input/output unit based on the broadcast response message. The processor configures the plurality of power circuits of the power supply based on the broadcast response message. The processor generates testing signals to the plurality of inputs and outputs of the configurable input/output unit and to the plurality of power circuits of the power supply.