To add 3D Games, create within games / download a directory with the name of your game and copy inside your ROM with the same directory name. Step 3 - Create the directory 'mcgames' in the root of the USB 1. Step 2 - Create the subdirectory 'download' within 'games' Step 1 - Create the directory 'games' in the root of the USB Necessary material: USB memory in FAT32 or exFAT format This separation between OS and Games is very convenient. On the other hand, it is important to comment that these boards have an eMMC built into the 4GB board where the operating system (Android) runs, while the games go to a 32GB or 64Gb SD in the board's internal SD slot. This S812 motherboard despite being a bit old is the one that offers the best performance in the Pandora Box because its GPU is made up of 8 cores, which in 3D games results in a performance unmatched by other more modern motherboards. The way to add games is somewhat complex but very powerful and much more functional than in previous models.