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 140F, 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.