"Looking at the back of the cooler reveals the several different ports that power the cooler and provide the USB hub ability of the cooler. The farthest left USB port is used to connect to the computer while the other four USB ports can be used to plug in your USB accessories. The DC power connector seems like it might be used with a wall plug and a power inverter brick (like most laptops use as well as other electronics that use DC power). However, the way that the Cryo LX works is that you use a provided cable that goes from USB to the DC connector. This pulls a lot of power, however, and might not work with every laptop."