In a single card setup where you keep both the OS and games on the same card, you simply need to eject the micro SD card from the TF-OS slot on the right side of the device and insert it into your computer.
As a Windows user, the system should automatically pick up a number of new “drives” for you to view. One of these drives is going to be named “BOOT” and there should be a drive named “EASYROMS”.
If you don’t see a drive named EASYROMS, it is likely because Windows did not automatically assign a drive letter to that partition.
To assign a drive letter in Windows, using the Search function in the taskbar, search for “hard disk partitions” to find the option for “Create and Format Hard Disk Partitions” on the Control Panel.
In the lower half of the tool, we can see a Disk labelled as Removable with a few partitions: Boot and Easyroms being two of them.
Right click on the Easyroms partition and select “change drive letter and paths” then click Add to assign a drive letter. Once assigned, you can now browse this drive.
Under the EASYROMS drive, we can see a series of folders each named for a different emulated system.
You will need to obtain your own game files (also known as ROMS), but once you have the file, drop the file into the corresponding folder for the emulated system.
Each system has its own file format for the game. Older 8-bit and 16-bit systems generally have the entire game in a single file whereas other systems may have multiple files per game.
Dual Card Setup
In a dual card setup, we use a dedicated micro SD just for the games. To enable a dual card setup in ArkOS (the default operating system), we need to insert a blank SD card into the TF2-GAME slot on the left hand side of the device.
Turn on the Pixel and wait until the main menu appears then find the Options menu by using the Up or Down arrow. Under the Options, open Advanced then scroll down to the bottom until you find the option for Switch to Second SD for ROMS
A wall of text will scroll by indicating that things are being copied and moved and eventually you end up back at the Options screen.
Now, you can turn off the device and eject the TF2-GAME SD card and insert it into your computer. This SD card will look just like the EASYROMS partition in the Single Card setup above.
Like above, if the drive does not appear, follow the steps to assign a drive letter to this SD card.
Simply copy your ROMS into the appropriate folder named for the emulated system.