Antec Notebook Cooler, 200mm Antec Big Boy fan with two speed settings delivers maximum cooling, Powered by a USB connector - no batteries or power adapters, Internal blue LED illumination delivers unbeatable style and can be toggled on or off through a convenient switch, Unique design enables effortless operation on either a flat surface or the users lap, Speed (Max.)600RPM±150 400RPM±150, Noise 27.1 dBA 23.8 dBA.