[Quiet fan] The notebook radiator has a single turbo fan, which can achieve ultra-quiet work [Two USB ports] This gaming notebook cooling pad has an additional USB port, and the USB hub can connect more USB devices [The height of the heat dissipation bracket is adjustable] The heat dissipation pad has 6 adjustable height settings to meet the different needs of work or games; equipped with a non- baffle to effectively prevent the laptop from slipping off [Adjustable cooling fan speed] The notebook cooling pad controller can adjust the cooling mode at any time; support notebook computers under 17.3 inches [Efficient and durable] The notebook radiator adopts high-quality directional metal mesh, which is and unimpeded, and realizes rapid heat dissipation. Product model: Q5 Rated voltage: USB 5V DC Product power: 2.4W Speed: 1400/min Adjustable gears: 6 gears Adjustable height: 8-15.6CM Cooling : air cooling Colour:silver Material:ABS+Aluminum Size:350 x 260 x 26mm Package Contents: 1 x Laptop Cooling Pad 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.