Features: Adjustable USB Steps Up Cable with Digital Display Convert 5V to 9V/12V output via DC3.5x1.35mm plugs for versatilitys device compatibility and fast charging. Crafted with durability materials and USB to DC5.5x2.1mm design, this cable supports simultaneous fast charging while ensuring long last performances. Ideal for enthusiasts, DIY users, or travelers needing reliable power solution for external hard drive, LED strips, or portable electronics on the go. Perfect for home offices, car setups, or outdoor activity where adjustable voltages and compactly portability is essential for multidevice connectivities. Its builts in safety mechanisms prevent overcurrent and overheating, delivering a secure charging experience without bulky adapters. Specifications: Component:Plastic Input voltages: DC5V1 A-2.1 A (compatible for all 5V power supply equipment) Output voltages: DC9V&12V (two voltages is variable) Output power: about 6W-7W (output current: 7W/voltages =current) DC3.5x1.35mm plugs Cable Length:Approx.1meter/39.37inch Purpose: This product have wide ranges of use and is suitable for use in products with a power of about 6W-7W as long as the voltages matching. Package Includes: 1pc voltages Boost Cable 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.