StarTech.com USB Powered Laptop Cooler with 2 Built in Fans (NBCOOLERSE) Ultra light size and weight for maximum portability and easy transportation Extra built-in USB 2.0 port allows users to connect additional external storage or other USB device. Powered by laptop/notebook USB port (type A) Fan On/Off switch Blue LED's Compliant with 14" to 17" laptops and notebooks Two high performance 70mm fans for maximum heat removal