Simply plug the four supplied components together as follows:
Plug the cables from the LED strips (A) already installed in the cubes into the 6-way distributor (B). It doesn't matter if you need only one slot or all six. Now connect the distributor to the radio receiver (C) for remote control (D). Then connect the radio receiver (C) to the power supply (E). In the last step, connect the power supply unit (E) to the socket - and then you are done!
In the figure above you can see the correct order. And don't worry, as the plug connections are not reversible, you can't make any mistakes when connecting them.