Features Speed Control: Controller designed according to the industry standard 4 wire fan interface (V+, GND, FG, PWM), which can control and adjust the speed of the fan's PWM signal interface 2510 Socket Interface: The fan interface is standard 4P 2510 socket interface, and 4P 5.08 male and female plug socket is reserved, which is convenient for connecting fans or motors with other types of interfaces Boost Fan: Widely used for heat dissipation, ventilation and boost fans designed with the same interface (V+, GND, FG, PWM) Relay Output: Can detect the FG speed signal of the fan, and process the rotation and stop signals of the fan to control the relay output Wide Uses: Used for computer heat dissipation, industrial cooling, ventilation, pressurization and other occasion or other electronic equipment, etc. Specification: Item Type: Fan Speed Controller Fan Interface: 4P 2510 Socket Interface (Pin) + 4P 5.08 Male and Female Plug Socket Power Interface: 6P 5.08mm Male and Female Plug Socket Interface Control Method: PWM Potentiometer: 100K Line Length: Approx. 25cm / 9.8in (Please allow a certain error in manual measurement) Power Indicator: Yes Adapted Fan: Adapt to DC powered 4 wire interface (V+, GND, FG, PWM) fan motor Application: For computer heat dissipation, industrial cooling, ventilation, pressurization and other occasion or other electronic equipment, etc. Package List:1 x Fan Controller Note:In terms of design theory, a 4 pin fan can be compatible with the function of a 3 pin fan, and a 3 pin fan can be compatible with the function of a 2 pin fan. The fan high needle count can be compatible with the low needle count function, but the functions corresponding to the extra or lack of wiring pins, wires cannot be realized. In addition, if the number of pins of the wiring plug and socket with the same spacing are not aligned, some can be perfectly inserted and matched, but some can only be inserted and function normally, but the plastic parts of the interface will have different deformations, which will cause contact. Bad, unreliable connection. At this time, recommended not to use for a long time, can be used for testing or other purposes. When is used for a long time, this is not reliable enough. Package List 1 x Fan Controller