Features: The 12V single channel pwms fan controller enables precise speed adjustment for optimizeds airflows and noise reduction, ensuring energy efficient cooling in PC and electronic devices with 4pin compatibility and integrated on/off switches. Featuring toolless installation, ABS construction, and universals 4pin pwms support, this module simplifies fan management while maintaining long reliability in high demands environments. for PC builders, IT professional, and enthusiasts seeking customizable thermal solution for gaming rigs, workstations, or home entertainment systems. Perfect for maintaining optimal temperatures in CPU cooling setups, server racks, or electronics where silents operations and space saving design. streamlines device thermal performances with controller, combining plugs and play functionality with industrial components for seamless integration into existing cooling systems. Specifications: Materials: ABS Size: 26x20mm Package Includes: 1PC pwms Fan Speed Controller 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.