6 Super Cooling Silent FansThe laptop cooling pad has 6 noiseless fans with blue LEDs that are not only aesthetically pleasing but also indicate that the fans are working. The very quiet and fast cooling effect prevents the laptop from overheating in different usage scenarios. [Adjust fan speed and cooling pad height] Our laptop cooling pads can work together or with 3 large fans and 3 small fans running separately, with two independent switches controlling the fan speed from 0 to maximum. With 2 heights for you to choose from, this pad can be freely adjusted to fit different laptops. [Unique USB port design] The laptop cooling pad has two built-in USB ports for connecting to other USB; with nylon braided cable for cooler, more durable and also easy to put in the storage case