17 inch laptop cooler max fans 1 fan dimensions 200 x 200 mm fan height 20 features fan control properties tiltable special features led fan anti slip rubber power switch max fan revolution 800 rpm min fan speed 500 max noise emission 24 db weight 091 kg materials plastic metal fabric connections 2 x usb 20 colours black blue series thermaltake massive power supply usb nominal voltage 5 v nominal current 039 a volume flow 10738 m