Whit this adapter you can connect Silence3D board and BLTouch simultaneously. If you get the BLTouch board you will be using this to connect a BL Touch sensor to your 3D Printer. You plug this board into your main control board with Silence3D silent board simultaneously. You then have the required 5V, Ground, and Signal pins, 5V, GND available to connect to your BL Touch Sensor.
You need to upload different firmware for BLTouch. With it X and Y motor are enabled simultaneously. You can not enable just one of them.