This custom water-cooled copper mini gaming PC has a top-spec Nvidia GeForce RTX 4090 graphics card and AMD Ryzen 7 9800X3D CPU.

then shoved it into a custom-made 3D-printed case. The result is a tiny headless PC that measures 7.6 inches by 4.9 inches and weighs just over a pound. It can be played on the go with a wireless ...