Thermaltake Massive V20 cooling stand Efficient cooling efficiency achieved by high quality materials used. The stand is compatible with notebooks 17" and smaller. The large fan (200 mm) provides high airflow and high cooling efficiency. The large area of the hexagonal grid allows optimal airflow to efficiently cool the entire notebook. USB cable management makes the working environment neat and orderly. Single, large fan A large, built-in, quiet LED fan with a diameter of 200 mm with a controlled fan speed provides high airflow and high cooling efficiency and reduces the overall temperature of the laptop/notebook. Control LED light and fan speed The included LED light switch and fan speed controller allow the user to easily adjust the lighting or fan speed. Management of USB cable with extender Unique USB cable management with extender for easy organization and extension to make the work environment neat and orderly. Hexagonal grid The large metal grid allows optimal airflow to effectively cool your laptop. The hexagon mesh provides the best air flow and supports cooling. Ergonomic design The V20 stand was designed for ergonomics. We tested the optimal angles of tilt and the height of the hands. Additionally, the anti-slip design ensures the safety of the notebook.