This product is a two way desktop charger composed of a DC power supply and a fast charging module. This design is aimed at improving the flexibility and practicality of the device without adding too much volume. The module supports DC power input with a maximum power of 200W, and the tail DC port is a 5.5 x 2.5 interface. Other DC power sources can also be connected, increasing compatibility. The module part is the display and shunt power of the desktop charger, and each Type-C port can output a maximum of PD100W and a maximum of total 200W. The maximum power is determined by the module, and the following power is determined by the power supply. Therefore, if the power supply is only 200W, The module can only output a maximum of 200W and meets the power requirements in order of interface usage. At the same time, a DC power supply can also independently power laptops, with the maximum power being the power of the power supply. This product does not include a power supply. You can bring your own DC power supply that with dc plug 5525, 12-24v. If you need to reach full power, you need a 24v power supply. You can choose the power according to your actual needs. Note: 1. When purchasing and using product modules separately, please connect them to 21V or above to achieve maximum power. 2. When using the product, please pay attention to heat dissipation and do not cover any objects. 3. The product does not support private protocols. 4. Purchase the module separately for use, please bring your own 12-24V DC power supply. Colour:Black Material:Metal Package Contents: 1 * Fast Charging Module 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.