No additional power supply required and no required. Just a USB cable 5-inch multi-theme display Support horizontal and vertical screen switching, rotation Energy saving and environmental protection, automatic shutdown screen Comfortable eye protection, stepless adjustment of screen brightness One-click operation, change the background image, switch themes Auto start at boot Set weather forecast city Compared with monitoring software such as AIDA64, it takes almost no resources when running Visual theme editor, drag the mouse to realize your creativity parameter: Display area: 110x66mm Overall size: 122*78mm Resolution: 800x480 Thickness: 10mm Viewing angle: IPS full viewing angle Interface: 2x USB-TYPE C. 1X TF Colour:black Material:plastic Package Contents: 1 x Secondary Screen 1 x Type C Cable Only the above package content, other products are not included. Note: Light 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.