StarTech.com Lightweight Laptop Cooler with 2 Fans (NBCOOLERLE) Portable, Ultralight weight allows for easy transportation 23" USB interface power cable included 2 Built-in High Performance low noise 80mm fans for maximum heat removal Optimizes cooling for 14 thin-and-light notebook designs Provides 34 CFM airflow with a quiet 19 dBa noise level Powered by laptop USB port (type A)