suitable for under14~17″Product size:395*300*31mmMaterial:ABS+Aluminium alloyBig fan size:110x110x15mm(1PCS)Small fan size:85x85x15mm(4PCS)Fan air volume:110（1100RPM±10%）Fan speed：85（1400RPM±10%）Rated power :5V DCRated current:0.56A~1A±10%Rated power:2.5W~5W±10%USB connector: 2 USB ports…