NZXT Technologies Note Book Cooler Unique Vortex Design With Bladless Fan, Black (RN-CRV60-B1) Unique vortex design with bladeless fan operation that produces a constant stream of cool air An ultra slim lightweight profile for ease of mobility, perfect for traveling Integrated fan controller to adjust your fan speeds to low or high settings Dual low RPM 75mm fans Supports notebooks up to 17 USB charge dock that provides power to two mobile devices Fan Controller; support up to 17-Inch; fan speed from 1000-1600RPM; Plastic Material 2 Year Warranty