1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm

Hey! This works! I replaced the power supply twice on a gaming mother board that would intermittently boot. Everything I read online said "PSU is bad." Fed up, I bought this. My PSUs checked out and passed the tests. Long story short, my motherboard was bad. So now I have extra PSUs. But for the price, this is worth every nickel and more.

I use this PC power supply tester in a professional environment to test all my customers desktop power supply connections. the 24-pin connection tester works fantastic with easy to read LED display. Highly recommended for both professional IT technicians and home users.

Some reviewers complained about lack of instructions LMAO if your testing power supplies and you need instructions to run this simple tool then maybe you should stay away from the toaster. It works and does its job took me longer to get it out of the ridiculous packaging, to simply have it plugged in and working. I like the fact that rather than other testers I have had in the past you get a digital readout rather than a go/no go light. Would be nice if had a rubberized but thats just me.

This little gadget works just as advertised and is a great value for the money! It had already paid for itself by diagnosing bad and good power supplies. I have not tested how accurate the voltage readings are, but it will definitely let you know if you have a bad power supply! I would definitely recommend for a budget tester!

Very handy little tool. Easy to use, just "plug-and-play". Diagnosed an old HP computer that failed because the power supply has a bad 12V rail. It reads "H.H" which means High Voltage / Overvoltage / Unsafe High Voltage. This would be the reason the CPU and motherboard failed! The HP proprietary power supply killed them! Thanks, HP! If you have ever had a PC component (or an entire PC) fail or break down and wonder if the power supply failed and killed it, this can help and is a whole lot cheaper than buying a whole new power supply, or will tell you if you definitely need to replace your power supply unit. Very handy to be able to diagnose this kind of thing from home!

This was definitely helpful to check the PSU was working. It was a little confusing on when things were having issues ( I had a PSU that seemingly was arcing power so I'm assuming it was bad. You get what you pay for so I may suggest buying a fancier one if you plan to use it regularly.

I used this to detect a low voltage cable output from my new power supply. If I hadn't tested, it definitely would have harmed the component I plugged into it.

3.3V LED was DOA but I was willing to ignore that. Then the 4 pin molex connector moved into the case and stopped working after testing only three power supplies. Rest of it still works but clearly not great construction.

El producto fue tal y como se ve, cumple su función.

I bought this to test an old gaming computer power supply. It worked well however not something you use often.

The ATX part worked OK but there were no instructions and no indications of how some of the connections should be used.