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Two tiny black PCB buzzers with 4-pin connectors

Corn Electronics

Corn Electronics Motherboard Buzzer Speaker 2-Pack

SKU CH-Q8YP-CWKG6

Two-pack of 4-pin motherboard buzzer speakers for POST code diagnostics and system status alerts

Model 2 Packs

  • POST beep codes diagnose motherboard faults
  • 4-pin female connector plugs straight into front-panel header
  • Two speakers included for spare or dual-system use
  • Compact new-style buzzer fits tight chassis spaces
  • Audible alerts confirm RAM, GPU, keyboard or BIOS errors

Desktop Motherboard Alarm Buzzer

This two-pack supplies a compact 4-pin speaker for each build, letting system assemblers and repair technicians hear POST codes the moment power is applied. The plug-and-play connectors fit the standard front-panel header, so no soldering or extra wiring is required. Buyers who need integrated audio or chassis-mounted speakers will not use these units.

Thermals Noise and Power Draw

The passive piezo element draws only a few milliamps from the motherboard header and generates no measurable heat during normal operation. Audible output is limited to the beep sequences defined by the BIOS, so the device adds no background noise while the system runs.

Diagnostic Beep Codes and Installation

Each buzzer translates the BIOS beep patterns listed in the specifications — from a single short beep for a successful boot to continuous tones for memory or power faults — into an immediate audible status report. Correct polarity alignment on the 4-pin header ensures reliable signalling without additional software or drivers.

How it compares

Measured against everything we stock in Audio Jack & RCA Adapters, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 94% of the 1,324 comparable items (median $16.99).

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Specifications

No published specifications for this item yet.

Other versions of this model

1 more in the same range

Questions about this item

How do I install the buzzer on my motherboard, and which step do people get wrong?

Plug the 4-pin female connector into the motherboard front-panel speaker header, making sure the positive and negative pins match the header markings; reversing the polarity is the common mistake that stops the beep codes from sounding.

What maintenance or replacement will these buzzers need over time?

The buzzers are passive piezo elements with no moving parts, so they require no routine maintenance; replacement is only necessary if a unit stops producing sound after a POST test.

What is the first limit that appears when the buzzer is used continuously during repeated POST cycles?

The piezo element can overheat if the continuous-beep condition (indicating unseated or faulty memory) persists for an extended period, causing the tone to weaken or stop until the device cools.

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