Havit HV-F2030 Blue Light Laptop Cooler comes with Single Fan and Stand. To ensure laptop's long-life and extra protection, It needs Laptop Cooler. the Havit HV-F2030 laptop cooling pad is conveniently powered by the USB port, with no need power adapter. This new Havit HV-F2030 Laptop Cooler featured with 21dBA(min)Fan Noice Level, 15dbA (min) Fan Noise, 5V Voltage. It has 800-1200 RPM Fan Speed and designed with 140 x 140 x 15mm Fan. The Havit HV-F2030 Laptop Cooling Pad is compact and the lightweight design allows it fit easily into your bag. It's ergonomic Five-stage height adjustment design also provides a comfortable viewing angle. The Laptop Cooler has no warranty.