4 ports of 2.0 USB Hub. Built in USB fan, dissipate the heat away. Perfect shape with 3 LED lamps ... device, thermometer, pad. 4 ports of 2.0 USB Hub.Built in USB fan, dissipate the heat away from notebook, improving performance and ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Multifunctional laptop table with USB fan,hub,LED lamp,Thermometer