Features: With technology and real time temperature sensing, this 12V fan controller dynamically adjusts fan speeds for optimal cooling efficiency in temperature sensitive environments. Featuring 4 wire with input and ABS housing, it ensures accurate control in demanding electronic applications. Ideal for PC enthusiasts, server maintenance technicians, and electronics engineers requiring advanced thermal management solution. Perfect for server racks, gaming PCs, industrial equipment, and devices where intelligent temperature regulation and adaptive fan control are critical for stability. Suitable for most 12V controlled fans, this controller simplifies installation while providing speed adjustments through its temperature responsive algorithm. Specifications: Component:Metal Size:Approx.34x19mm/1.33x0.74inch Package Includes: 1Pc Speed Controller note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.