Triple Efficient FansTECKNET laptop cooling pad with 3 powerful fans works at 1200 RPM to pull in cool air from the bottom to save your laptop, notebook, netbook, Ultrabook, Apple MacBook Pro cool from overheating due to long time on-line or gaming. Easy to UseUSB powered 110mm fans and power switch design, ultra-quiet and easy to use; no mains power connection needed. Double USB PortsOne USB port can power the laptop cooler, the other one can be connected to external devices, such as keyboard, mouse, audio, etc. The blue LED indicators are helps to confirm the laptop fan is running. Warm Tips: The packaged cable is USB to USB connection. Ergonomic Comfort2 adjustable levels to lift and tilt your laptop for better viewing and increased comfort; Rubber grips at the bottom keep your laptop from sliding. Wide CompatibilityCompatible with various laptop sizes from 12 up to 17 inches, such as Apple MacBook Pro Air, HP, Alienware, Dell, Lenovo, ASUS, etc (USB ca