4 ultra-quiet fans, speed 1200RPM, fast heat dissipation, no dead spots.Ergonomic design, 4-level height adjustment LED screen with adjustable wind speed to meet various needs.Dual USB ports, USB power supply, one loan and one return USB port, not occupying the USB port of the notebook.Strong compatibility, suitable compatible with 12-17 inch notebook computers, even if the size of the notebook computer exceeds the size of the radiator, it will not affect the heat dissipation.The special non-slip baffle can prevent your laptop from following on the inclined surface, and there is a thickened anti-slip pad at the bottom to keep the laptop stableColour: blackMaterial: ABSSize: 40 x 27 x 5cmPackage Contents:1 x radiator1 x USB cableOnly the above package content, other products are not included.Note: Light shooting 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.