This is a PC motherboard internal speaker buzzer, used for BIOS beep codes. Function: It plugs directly into the motherboard to emit audio beeps during the Power-On Self-Test (POST) to diagnose hardware issues. Design: The component features a black speaker unit connected via a two-wire cable to a 4-pin header connector labeled "SPEAKER". Sound: It uses a piezo element to produce basic tones, which are sufficient for diagnostic purposes but offer lower audio quality compared to standard cone speakers. I always endeavour to carefully package items to ensure safe transit, and dispatch ASAP via Tracked Royal Mail. Please let me know if you have any questions. Thanks for looking.
