This product comes with a USB 2.1 interface USB interface Does not occupy the host Real-time monitoring of temperature changes to protect the host in good operating condition When the temperature reaches 140°F, the host may reduce the frequency. Active interference is recommended Intelligent lighting effects synchronize with rhythm, giving you the most visual impact Touch the screen light 3 seconds to turn off the light Hydraulic bearing fans adjust the operation while reducing friction and noise.9-blade spoiler design to extract hot air and dissipate heat efficiently Sponge shock-absorbing foot pads Honeycomb noise reduction air duct Stacking design, multi-dimensional heat dissipation structure, extending the service life of the host Hign-concerned Chemical:None Working voltage: DC-5V Working current: 500mA (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: plastic Package Contents: 1 * RGB Cooling Fan 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.