Features: The MP3429 boosters Converter Module delivers up to 21A input current with 90%+ efficiency, featuring low output ripples for stable power supply in highly demand electronics. PCB integrates wide input voltages compatibility (for multiple liions batteries) and builts in overcurrent/thermal protections for enhanced safety. for engineers, enthusiasts, and professional requiring power management in portable devices or industrial equipment. Perfect for drones battery systems, solar powereds gadgets, and automotive electronics where space constrained layouts demand efficient voltages boosting. This plugs and play module simplifies circuit integration with its modulars structure, ensuring rapid prototyping and extended battery runtimes in energy sensitive applications. Specifications: Materials: PCB Size: 40.64x20.32x7.5mm voltages: 5V, 9V, 12V, 15V(optional) Package Includes: 1PC boosters Power Supply 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.