I can accommodate color changes for white, black, and red after purchase if you leave a comment. This is a custom-made 3D-printed cover for a Wonderswan Color and Crystal USB power supply unit (a set of the power board and cover). The conventional Chinese power boards had tall components, resulting in a bulge like a standard battery case. However, since the end of 2024, a new type of power board has emerged with lower component heights, allowing for a flat cover to be installed. I've tried to print it as cleanly as possible, but it's a layered print, so it has a slightly jagged texture, which is to be expected. With translucent colors, the LED is visible, and the seams of the print are slightly noticeable, which is a current product specification (see photos). Opaque colors like white, black, and red will make the LED almost invisible (black is practically invisible). Power is supplied via a USB-C connector; any standard 5V output will work (USB-PD is not supported). Only the power unit and board cover are included. The board cover is made of PLA resin and is sensitive to high temperatures. Do not leave it in places exceeding 40 degrees Celsius, as deformation may occur. Other colors will depend on the availability of affordable filament, so please leave a comment with your request, and I will check if it's possible. For those who already own a power board: If you only want the cover, please ask in the comments. However, due to individual differences in board soldering, the metal fittings may be raised, making direct attachment impossible. Therefore, it's for those who can modify the cover by trimming or other methods. Currently, it's Ver.0.47, and I'm periodically reviewing the design.