Commonly used filter capacitors for HiFi equipment are several thousand to 10,000 F, 1F () = F (microfarad); this product has a built-in 7F large-capacity capacitor for energy storage, which is hundreds to thousands of times that of ordinary capacitors. After use, the background can be made darker, and the dynamics and elasticity can be enhanced (especially the low-frequency elasticity); it can be widely used in power supply filtering of equipment such as small . Compact and : Its sleek, portable design makes it easy to integrate into any small tail PC setup without adding bulk. Built with high-quality materials, it ensures durability and long-term use. Easy Installation: This power filter rod comes with user-friendly plug-and-play functionality, making installation quick and effortless, perfect for non-tech users as well as professionals. Notice:1: This machine is designed for low-power USB-powered audio equipment. For example, when the input current is 0.9A, the maximum output current is also 0.9A. The actual output current automatically changes according to the needs of the equipment. 2: This machine can use a switch to select the input current of 0.9A (same as the output current value of USB3.0 on the computer) or 0.5A (same as the output current value of USB3.0 on the mobile phone). Supports maximum input and output current 5A. 3: Precharge and store energy first, then automatically output after full charge. 4: Because there is a between the circuit board and the slide rail on the inside of the case, it is normal to make a "clattering" sound when shaking the machine, so please to use it. 5: Type C input port, input current selection switch Color: Silver Material: Metal Package Contents: 1 x DC 5V Super Capacitor Power Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.