Tree New Bee Cooling Pad for 15.6-17-Inch Laptops with Four 120mm Fans at 1200 RPM, Black (TNB-K0025) Laptop stand helps keep laptops running cooler to help reduce crashes Computer workstations with four fans and two anti-skid arms, metal platform draws heat away from laptop Docking stations slim, portable and light weight allowing you to protect your PC wherever you go Extra USB ports and switch: Extra USB port and wind speed switch design, built-in dual-USB hub allows for connecting more USB devices Ergonomic comfort: Adjustable height setting, comfortable for natural point of view