15 inch laptop cooler max fans 1 fan dimensions 140 x 140 mm fan height 15 features fan control max fan revolution 1 400 rpm min fan speed 700 max noise emission 21 db min noise emission 15 weight 08 kg materials metal plastic connections 2 x usb 20 colour black series coolermaster notepal power supply usb nominal voltage 5 v nominal current 034 a operating power input 17 watt volume flow 7951 mh width 33 cm height 28 cm