I have a raspberry pi 4 8gb Retropie 1TB M.2 SSD with Gamesir controller accessories for sale. The console has a built in fan with heat pipes to keep it cool. It is configured to boot directly from the m.2 drive. The games that were tested are working well. You may need to configure the controls for some consoles. If you would like to do any tweaking to the system that is something you will need to research yourself. If you have any questions just let me know.