[High-speed silent fan]The notebook computer cooling pad is equipped with two high-speed fans, which provides excellent heat dissipation effect and optimizes the heat dissipation effect of 15.6-17inch notebook computer. Its size is very powerful. Surprisingly, they are only 26dB quiet. You can 't even hear it! [ Carry with you]It weighs only 130 grams, and is one of its lightest radiators. It is completely flat and perfect for transportation in a backpack or briefcase. [Ergonomic Comfortable Cool Pad] Ergonomically set up tripod. The built-in large anti-skid baffle can effectively prevent the notebook computer from sliding down; it can meet different needs when working or playing games, and is comfortable and natural. [Extra USB port] Extra USB port and power switch design. The built-in USB hub allows more USB devices to be connected. Warm reminder: the packaged cable is USB to USB connection. C-type connection devices require a C-type USB adapter. [Independent design]The contact surface of the computer radiator and the computer is designed with comfortable materials, which will not cause damage to the computer surface. While protecting, it increases friction and makes it more stable during use. Type: notebook cooler Current: 150mA Voltage: DC5V colour:Black Material:plastic size:32 x 14.5 x 2cm Package Contents: 2 x laptop cooling fan