Spyker 15-17 Inches Laptop Stand with Twin 140 mm Cooling Fans Silent two hydro Bearing fans with Blue LEDs powered by USB port. Durable ABS plastic with steel leg support able to hold laptops up to 17" Metal mesh provides a stable surface for you to work on the computer in comfort Tilted base to provide a comfortable typing angle Built-in dual-USB hub allows for connecting more USB devices. Fan On/Off Switch. Noise Level: 25.1 dBA. Power Source: USB Port.