Attribute	Details
Type	Piezoelectric buzzer (2 variants: cylindrical & flat)
Connector	2-Pin female plug (matches motherboard "SPEAKER" header)
Cable Length	15cm (standard)
Voltage	3V–5V DC (compatible with motherboard header output)
Function	Emits BIOS diagnostic beep codes during PC startup to indicate hardware issues (e.g., RAM, GPU, or CPU errors)
Compatibility	All desktop motherboards with a 2-Pin "SPEAKER" header
Feature	Plug-and-play installation, lightweight, and durable piezo element for clear beep tones

This internal PC motherboard speaker is an essential diagnostic tool for any desktop build. It connects to the 2-Pin "SPEAKER" header on your motherboard and emits distinct beep codes during startup, helping you quickly identify hardware issues like faulty RAM, a disconnected GPU, or a failed CPU. Available in both cylindrical and flat piezo designs, it features a compact, lightweight build and a 15cm cable for flexible placement inside your PC case. Plug-and-play installation ensures it works with all standard motherboards, making it a must-have for PC builders, technicians, and enthusiasts.