Features: This fast charging step down power module offer flexible 1, 2, or 4 port output for simultaneous charging of multiple devices like phones and tablets, featuring efficient regulation to ensuring stable power delivery and device safety. Designed with circuit board for easy installation in various setups, it provides broad compatibility with most charging adapter and devices, using for enhanced durability. Ideal for professional, and users seeking electronics, this module enhances assembly efficiency and delivers dependable power management for daily use. Perfect for home and office environments, it efficiently handles multiple device charging demands during prolonged usage, such as powering phones, tablets, and other electronics without overheating concerns. Constructed from premium circuit board components, this fast charging module ensuring long term reliability and superior stability in demanding applications, outperforming standard alternatives. Specifications: Component:Circuit Board Type:1CH/2CH/4CH 1CH:Approx.34x17mm/1.33x0.67inch 2CH:Approx.50x40mm/1.96x1.57inch 4CH:Approx.90x45mm/3.54x1.77inch Package Includes: 1Pc Stepping Down Converter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.