A Fuser combines video signals from both PC's outputs via HDMI cables and overlays the outputs of two PCs onto a single screen at high refresh rates. This technology allows you to fuse projects onto your main monitor, ensuring that no project is rendered directly by your gaming PC. Instead, all projects are only visible on your monitor or a capture card, which helps to maintain the performance of your gaming rig. This setup is particularly beneficial for streamers and professionals who need to manage multiple workflows without compromising on screen real estate or performance.