The official Snes9x GX does not include cover support. You need a community-modified version.
Installing a cover mod on your SNES9x GX emulator can enhance your gaming experience in several ways: snes9x gx cover mod install
Name images exactly like the ROM filename, e.g.: The official Snes9x GX does not include cover support
: If the channel crashes upon launch, ensure the emulator folder inside the folder is named lowercase Covers Not Showing : Double-check that the image dimensions are exactly snes9x gx cover mod install