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Compact handheld ATX PSU tester with LCD screen showing 12V, 5V, 3.3V and PG signal for 20 and 24 pin connectors

SMUGDESK

SMUGDESK 2024Pin LCD ATX PSU Tester

SKU CH-DG72-BYHPM

Tests 20 and 24-pin ATX, BTX, ITX, TFX power supplies, displaying 12V, 5V, 3.3V and PG signal status on an LCD screen for quick fault diagnosis

  • LCD display shows real-time voltage readings for fast PSU diagnostics
  • Tests 20pin and 24pin connectors across ATX, BTX, ITX, TFX standards
  • Measures +12V, +5V, +3.3V and PG signal to pinpoint faults
  • Plug-and-play operation needs no software or drivers for quick troubleshooting
  • Compact handheld design suits PC repair, DIY builds and workshop use

SMUGDESK LCD ATX PSU Tester

This SMUGDESK tester is a compact diagnostic tool for checking desktop computer power supplies. It connects directly to 20pin or 24pin motherboard connectors on ATX, BTX, ITX and TFX units. The built-in LCD screen displays real-time voltage readings for immediate fault identification. No software or drivers are required for operation.

Suited for repair techs and DIY builders

Hardware technicians and PC builders who need to verify PSU health before installation will find this tool efficient. It is not suited for users requiring load testing or ripple measurement capabilities. Buyers needing to diagnose laptop power bricks or server-grade redundant supplies should look elsewhere. The unit only performs detection and cannot repair defective hardware.

Tests 20pin and 24pin connectors

The decisive specification is native support for both legacy 20pin and modern 24pin mainboard power interfaces. This dual compatibility allows a single tool to cover older ATX standards alongside current BTX, ITX and TFX form factors. Without this specific connector coverage, separate testers would be required for different system generations.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 96% of the 971 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

How long can the 24pin LCD tester run continuously before heat or power draw becomes an issue?

The unit draws only the tiny sense current from the PSU rails it is measuring, so it adds virtually no load and generates no noticeable heat even during all‑day troubleshooting sessions.

What power connectors must already be present on the PSU for the 2024Pin tester to work?

The PSU must provide either a 20pin or 24pin ATX main‑power connector; the tester plugs directly into that harness and reads +12V, +5V, +3.3V and PG signal without any extra cables.

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