One 12cm big fan provides silent and great wind power
Its ergonomic design makes users feel comfortable while using
Compatible with 11 to 14-inch Notebook PC
Constellation marks and sun radiated design for punched wind holes are classical technical art
Two USB ports for USB flash drives, speakers or other accessories (one port for power)
Thickness of aluminum is 2.2mm that provides great cooling efficiency so that users feel comfortable while using for a long time, it also protects NB and extend NB5798439283 lifespan
Reserved 5V DC power supply hole for users if they need