Features: Versatile voltages Option : This fan speed control module offer 5V, 12V, and 24V output option, catering to various fan specifications and diverse application needs for optimal cooling performances. Wide Input Compatibility : With support for DC5-30V and AC4-20V inputs, the module ensures stable operations across different power sources, enhancing flexibility in various setups. Smart Temperature Control : Equipped with a high precisions temperature sensors, it automatically adjusts fan speed based on real time environmental temperature, improving cooling efficiency and device longevity. Smooth Speed Adjustment : Features stepless speed control for quiet and precise fan operations, allowing customized airflows for enhanced comfort and reduced noise levels. Compact & Easy Installation : The compact design (50x25x12mm) simplifies integration into tight spaces, making it for computers, electronics, and industrial equipment cooling solution. Specifications: Materials: PCB, Metal Product size: 50x25x12mm Product weight: 14g Input voltages ranges: DC5-30V/AC4-20V styles: A, B (optional) Output voltages: DC5V, 12V, 24V (optional) Adjustable gears: 5Gear Start control temperature: 45℃~50℃ Package Includes: 1Set Fan Speed Control Module note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.