17 inch laptop cooler max fans 1 fan dimensions 230 x 230 mm fan height 20 special feature led fan max fan revolution 1 000 rpm min fan speed 600 min noise emission 19 weight 085 kg materials metal plastic rubber connections 3 x usb 20 colour black series coolermaster notepal power supply usb nominal voltage 5 v volume flow 15257 mh width 379 cm height 47 cm depth 305 cm