The Asus ROG Ally is an excellent PC gaming handheld in its own right: a gorgeous full HD screen and great performance, all in a lightweight and stylish form factor. However, a modder sought to improve upon its design and added an extra screen.
You can find the full project on GitHub, courtesy of modder Kira Patel (YesItsKira), as they describe the process of picking out the 7-inch screen as well as attaching it to the system. The modder had to remove the extra HDMI port and headphone jack, use a USB Type-C compatible dock to connect the monitor to the system, and 3D print various parts to connect and attach the screen to the ROG ally properly.
