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Compact handheld PSU tester with 20+4 pin LCD display and SATA connectors

SMUGDESK

SMUGDESK 20+4 Pin LCD Power Supply Tester

SKU CH-YVRM-W8X60

Diagnoses PC power-supply health via 20 and 24-pin connectors plus SATA, showing live voltage on an LCD screen

  • Real-time voltage monitoring via clear LCD screen
  • Tests 20+4 pin ATX, ITX and BTX power supplies
  • Checks PCIE, SATA and HDD connector rails
  • Instant plug-and-play operation with no software needed
  • Compact handheld tool for PC repair and troubleshooting

Purpose & Audience

This digital LCD power supply tester checks ATX, ITX and BTX units through their 20 or 24 pin main connectors. It also reads PCIE, SATA and HDD rails so technicians can verify a PSU before fitting it to a motherboard. The tool is built for repair shops, system assemblers and hobbyists who need instant voltage confirmation. It is not suited for users who require automated logging or software-driven test sequences.

Sustained-Load Behaviour

The tester draws its operating power directly from the supply under test, so it remains active for as long as the PSU stays on. Voltage readings update continuously on the LCD, letting you watch rail stability during extended burn-in sessions. No external battery or mains adapter is needed, which keeps the wiring simple during long diagnostics. The device does not apply its own load, so it cannot stress a supply at high current.

Thermals, Noise & Power

Because the unit has no fan or active cooling, it runs completely silent and adds negligible heat to the test bench. Its own consumption is limited to the few milliamps required to drive the LCD and sensing circuitry. The compact handheld shell stays at ambient temperature even during prolonged use. There are no moving parts to wear out or generate vibration.

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

Does the tester generate noticeable heat or fan noise when left connected to a PSU for extended testing sessions?

The SMUGDESK unit has no internal fan and draws minimal power from the supply under test, so it remains silent and does not add measurable heat during prolonged diagnostics.

What power connectors must already be available on my power supply for this tester to function?

Your PSU needs a 20 or 24 pin main connector plus any combination of PCIE, SATA or HDD peripheral plugs you want to verify.

Will it work with an older BTX-form-factor power supply I still use in a legacy build?

Yes, the tester is compatible with BTX, ATX and ITX standards, so it can diagnose the older BTX unit alongside modern power supplies.

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