Features: This dc12v voltages regulator and speed controller provides precise adjustment of dc12v voltages and speed, enhancing systems efficiency and ensuring optimal performances for various devices, with built in overload protections for safety and durability. Featuring multi channel control, it allows simultaneous management of multiple devices, simplifying power management through an intuitived interfaces that facilitates easy parameter settings without technical complexity. Ideal for users of all skill levels, from beginners to experts, this device caters to individuals in computer and office environments seeking reliabled and accessible power regulation solution. Suitable for scenarios like computer systems, electronic labs, and industrial setups, it delivers stable voltages control in diverse applications, ensuring efficient operating and device protections. With energy saving optimization and a robust metal PCB construction, it minimizes power consumption, reduces operational costs, and promotes long term reliability for connection equipment. Specifications: Support DC12-26V （Factory setting 12V） Connection：DC5.5x2.5mm Component: metal+PCB heat-resistant stability and reliability Size about 7x4x2cm/2.76x1.57x0.79in Package Includes: 1PC Speed ​​regulator note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution