TeckNet Laptop Cooling Pad, USB Powered Laptop Notebook Cooler Cooling Pad Fan Stand Laptop Chill Mat,Fits 12-17 Inches,5 Adjustable Heights Tecknet laptop cooling pad with large 140mm fan and blue LED light works silently at 1000 RPM to pull in cool air from the bottom to keep your laptop,notebook,netbook,ultrabook,Apple Mac BookPro cool from overheating. 5 adjustable heights to lift and tilt your notebook display and keyboard for increased comfort. Metal mesh surface and large 140mm quiet fan can rapidly dissipate the heat generated in the laptop housing;Blue Led light helps to confirm the cooler is working. USB powered fan makes no mains power connection needed. USB pass-through connector for additional USB device. Wide compatibility - Support various laptop sizes from 12 up to 17 inches,such as Apple Macbook Pro Air, HP, Alienware, Dell, Lenovo, ASUS, etc