The NZXT Cryo S is a great accessory, it provides additional cooling for your notebook without adding much noise, improves posture by tilting the keyboard and comes with extra USB ports. If the Cryo S had a power off switch for the fan, this would be the complete cooler to own.

Quote: The Cryo S features an aluminum construction, two 120mm cooling fans and two USB ports as well. It also comes with its own AC power adapter so yo u dont have to power it with your notebook if you dont want to, this is a nice way to conserve on battery power.