The controller is a 5V lighting controller, exclusive 5V lighting fan interface accessories, can solve the problem of insufficient motherboard lighting interface or motherboard no 5V lighting interface, SATA direct supply, no need to connect to the motherboard, you can realize the light of the fan on. The 3PIN 5V controller provides power supply for SATA interface, the controller can realize the mode, brightness, frequency of the fan light, can be controlled at any time, not connected to the motherboard, so there is no need to worry about whether the motherboard supports. Controller button B button: There are a total of 5 levels of brightness, which can be cycled sequentially. When the A-RGB fan is connected to the controller, you can use this button to control the cooling fan. Controller button M key: can be converted to static color, dynamic rainbow color, color unidirectional color and other more than a dozen colors in order cycle. Controller button S key: called light effect frequency, there are a total of 5 gears, cycling in order, only when the mode effect is dynamically changed, the button can be used.