17 inch laptop cooler max fans 1 fan dimensions 200 x 200 mm features cable management fan control properties tiltable special feature power switch max fan revolution 610 rpm min fan speed 470 max noise emission 20 db weight 11 kg materials rubber steel connections 3 x usb 20 colour black series zalman zm ns power supply usb nominal voltage 5 v max tilting angle 45 min tilting angle 8 width 377 cm height 52 cm depth 283