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Small black plastic buzzer with 4-pin connector and 2.8 inch lead

Unique-Bargains

Unique-Bargains Internal Mini 4Pin PC Buzzer Speaker 2.8

SKU CH-JC91-BD6K3

A 4-pin motherboard buzzer that provides BIOS beep codes for system diagnostics

  • 4-pin connector fits standard motherboard headers
  • 8 inch cable reaches tight chassis spaces
  • lightweight plastic body adds negligible mass
  • audible beep codes simplify POST troubleshooting
  • single unit ready for immediate installation

4-Pin Motherboard Buzzer Speaker

This 4-pin buzzer connects directly to a motherboard header to provide POST beep codes and BIOS alarm signals. It is intended for PC builders, system integrators and technicians who need audible diagnostics during hardware bring-up or troubleshooting. The compact plastic housing fits standard chassis layouts. The 2.8 inch lead length reaches most front-panel header locations.

Suits builds needing basic beep codes.

This speaker suits anyone assembling a new system, diagnosing a no-boot fault or adding an alarm to an embedded board where a simple beep is sufficient. It does not reproduce music, voice or game sound, so buyers who want multimedia audio should look at a dedicated sound card or external speakers instead. The single-unit pack covers one motherboard only.

4-pin header connector decides compatibility

The only specification that determines fit is the 4-pin mainboard connector type; the buzzer plugs straight into the standard speaker header found on most desktop and server boards. No driver or software configuration is required — the BIOS drives the beep directly through this header. Verify that your board exposes a 4-pin speaker header before ordering.

Highlights

  • 4-pin connector fits standard motherboard headers
  • 8 inch cable reaches tight chassis spaces
  • lightweight plastic body adds negligible mass
  • audible beep codes simplify POST troubleshooting
  • single unit ready for immediate installation

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose a different connector or length for my motherboard?

This buzzer uses a 4-pin connector and measures 2.8 inches total length; match those to your board header.

How loud is the beep once installed in a case?

It produces standard BIOS beep codes audible through a typical chassis for POST alerts and alarms.

Does the 4-pin interface limit voltage or current?

The 4-pin header draws power directly from the motherboard, so output level is set by the board’s beep-circuit design.

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