Sacred optical synchronization: the full name is AURASYNC, also known as optical synchronization. It is mainly used to make the hardware lights in the chassis or the chassis flash synchronously or asynchronously through the motherboard. Simply put, it is to synchronize the hardware lights in the chassis or in the chassis, and let the RGB lights flash synchronously instead of separately. Shenguang synchronization was originally introduced by ASUS, and now it is also available in Gengsheng and different hardware manufacturers. In terms of lighting efficiency, the configurations of ARGB and RGB are also different. With the development of DIY industry and the improvement of lighting efficiency, the transition from the mainstream RGB to the current ARGB. On the basis of RGB color mode, Alpha (transparent) channel is added, which realizes more diversified effects than RGB. RGB: analog device, RGB is Red and Green, and three Blue LEDs are packaged in a shell, the first stage of the three LEDs is shared, and the cathodes of the three LEDs are independent. The brightness is changed by controlling the current of each color LED, and then the color effect is achieved through the combination of different colors.