Accessories and Documentation
Inside the box along with the M6 you are given two cables. The one on the left is a simple UBS 2.0 to USB 2.0 cable that is two foot long and allows you to power the fan and the additional four ports. The two foot of cable on the right is a 3.5mm pass-through cable that takes the laptops output and sends it to the 2.1 speaker system in the M6.
If you do need instructions for connectivity, refer to the back of the external packaging. There is where you will find two images of the cooler and one of a laptop showing how the cables are to be connected to get both fan and USB power, but also audio.
If the images weren't simple enough for you to follow, under those images you also have written descriptions of the connectivity and usage of the various features found on the back. At the very end, DEEPCOOL states that you would need to buy your own 5V 1.5A power cable if you wish to use the DC IN port.