What is a AR2 dongle?
A dongle is a device that is attached to a computer's I/O
(input/output) port to release access or operation of software or
hardware. Without a dongle, the software or hardware is rendered
useless. The term "AR2" means "Action/Replay 2", a feature used in
video games to store game play, codes, characters etc. Closest
match is a memory card. So, putting the two together, an AR2 dongle
is hardware that unlocks features or play of game software.