The sound comes from Microsoft Windows system audio, where a short chime plays when a computer recognises a newly connected USB device or other hardware. As Windows became the dominant desktop system, that notification became part of everyday computer use and was quickly recognised outside its original context. Online creators began lifting it into short videos and memes to signal a connection, arrival or sudden realisation, and its use spread across TikTok, YouTube and Discord edits. It remains popular because the cue is short, familiar and immediately understood without explanation.