Features: This 4port USB steps down converters efficiently transforms DC9-36V input to stable 5V/3A output, featuring A5268 chip protections and 95% conversion efficiency for safe simultaneous charging of multiple devices. Engineered with copper terminals and synchronized rectification technology, the module delivers most 25W power output through four USB port while maintaining optimal thermals performances. Ideal for automotive enthusiasts, outdoor adventurers, and electronics technicians requiring reliable power conversion solution for navigation systems, dashes cameras, and portable devices in mobiles environment. Perfect for vehicle charging stations, solar power systems, and emergency backup setups where stable DC5V output is important for powering LED arrays, Bluetooth-compatible devices, and USB compatible electronics. The compactly module incorporates visible operation indicators, ensuring voltages stability during engine startups and making it compatible for 12V/24V truck systems and 36V solar panel configurations. Specifications: Component:Plastic Size:Approx.47.2x37.3mm/1.86x1.47inch Interfaces Type and Quantity: 4usb a Port Voltages Conversion Ranges: Dc36v/24v/12v/9v to 5V3A (Total Current 6 A Option Type:1pc,3pcs; Package Includes: Package A 1pc 4USB Port Steps-Down Power converters Board Package B 3pcs 4USB Port Steps-Down Power converters Board note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.