the zefyros cooling pad is a new addition to the c-tech game line. with the growing popularity of gaming laptops, laptops need to be cool to cool down to slow the running of the notebook due to overheating and increase the life of their laptops. zefyros is a modern cooling pad designed for notebooks up to 17.3 &, the main parameter of the pad is the cooling performance and the overall noise produced by the fans used.the zefyros cooling pad is equipped with four ultra silent 140mm fans with led backlight and speed control. the controller itself is located on the top and can be controlled continuously by fan speeds.specifications:maximum laptop diagonal: 17.3 &, number of fans: 4fan diameter: 140mmmaximum fan speed: 0-900 rpm.ports: 2x usbpower supply: 5v dc usbdimensions: 410 x 305 x 30mmweight: 780g