Cooler Master, in its commitment to continual improvement, has improved the value proposition of the NotePal U3 by having it support 17-19 inch notebooks and equipping it with three moveable 80mm fans that are connected to a fan speed controller clip. This is all powered by a single pass-through USB cable so users won't have to sacrifice a USB port. The fan speed controller clip allows for easy attachment to either side of the U3 to accommodate different USB port locations. Adjustable fan with speed control function, powered by one USB. Quick release fan, easily lock on, replace and remove. Unique fan speed control clip for quick setup and replacement. Aluminum mesh design for excellent heat dissipation. Slim and light weight for great portability. Ergonomic angle for comfortable viewing.