If you are looking to find the best GBA emulator for windows to play GBA games then you can try NO$GBA.
NO$GBA is also known as No Cash GBA Emulator. It supports almost all GBA games as well as Nintendo DS games. This is one of the best and most famous GBA emulator currently for Windows and DOS platforms.
- Support GBA as well as DS and NDS ROMs.
- One of the fastest GBA emulator for Windows.
- Support DOS as well.
- Open source and free.