About the product
- Package: 4pcs PC Motherboard Internal BIOS Alarm Buzzer, Overall Length: 2.3\".
- Function: The sound of the buzzer can be used to judge the working status of the motherboard.
- Wire: Red line is positive pole, Black line is negative pole, length 1.3\".
- Use: The sound of \"beep\" we heard while the computer powered on, is emitted from this mini buzzer.
- Easy to Install: Regardless of the positive and negative, just plug the buzzer into the speaker interface on mainboard, it will work.
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