10 Best Power Supply Testers 2021

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

Computer PC Power Supply Tester – ⭐ Best Overall Power Supply Tester

PC - PSU Tester by Fuhengli

  • Color: Aluminum Alloy Enclosure
  • Weight: 0.19 pounds
  • Dimensions: 4.9 x 2.6 x 0.6 inches
Computer PC Power Supply Tester
  • [8-in-1 ATX Power Supply Tester] -- Support test 20-pin IDE / 24-pin IDE / HDD / Floppy 4-pin / PCI-e 6-pin / 4-pin / 8-pin / SATA connectors
  • [Aluminum Alloy Enclosure] -- Light and Easy to Carry, High Strength, Nice Thermal Conductivity & Corrosion Resistance
  • [1.8'' LCD Screen] -- Outputted Voltages shows on the 1.8'' LCD Screen, Easy to Read ( The 1.8'' LCD Screen was Powered by 20-pin / 24-pin Connector ), Note: The Product Screen Has a Load of Scratches All Over It?Because The Screen is Easy to Scratch, We Put a Protective Film on It, If You Think It's Not Beautiful, You Can Tear It Off by Yourself
  • [Beep Alarm] -- When your power supply test value is beyond normal range, the Power Supply Tester would issue a buzzer alarm, Easy to Know
  • NOTE: The voltage of IDE / SATA / P6 / P8 interface is displayed by the three lights on the left of the power tester. If their voltage is normal, the three groups of lights (+ 12V, + 3.3, + 5V) will be on. If the light is not on, it indicates that the interface line group is faulty

Thermaltake Dr. Power II Automated Power Supply Tester Oversized LCD – 👑 Premium Pick

AC0015 by Thermaltake

  • Release date: 06/11/2019
  • Color: Original Version
  • Weight: 0.31 pounds
  • Dimensions: 3 x 1 x 5.1 inches
  • Warranty: 3 years
Thermaltake Dr. Power II Automated Power Supply Tester Oversized LCD
  • Supports all ATX power supply up to ATX12V 2.3
  • Oversized LCD panel shows all voltages within 1/10th volt for quick and easy troubleshooting
  • Voltage reading for all rails (+12V/5V/+3.3V/5VSB/ 12V)
  • Built in output connectors diagnostic system, low voltage, high voltage, no voltage, PG alarms
  • Built in alarm to notify user of unstable or abnormal power supply activity
  • Easy to use troubleshooting system will quickly identify if power supply is the source of instability

Optimal Shop 20+4 Pin LCD Computer Power Supply Tester for

Optimal Shop by Optimal Shop

  • Color: Black
  • Dimensions: 8.3 x 3.7 x 0.8 inches
Optimal Shop 20+4 Pin LCD Computer Power Supply Tester for
  • 8-in-1 ATX power supply tester: Support testing 20-pin IDE/24-pin IDE/HDD/floppy disk 4-pin/PCI-e 6-pin/4-pin/8-pin/SATA connector.
  • Aluminum alloy shell: light and easy to carry, high strength, good thermal conductivity and corrosion resistance.
  • 1.8" LCD screen: The output voltage is displayed on the 1.8" LCD screen, which is easy to read (1.8" LCD screen is powered by the 20-pin/24-pin connector). Note: Is there a scratch on the product screen? Because the screen is easy to scratch, we put a protective film on it, if you think it is not beautiful, you can tear it off by yourself.
  • Buzzer alarm: When your power supply PG number fails, the power tester will emit a buzzer alarm, which is easy to know.
  • When testing with HDD/floppy disk 4-pin/PCI-e 6-pin/4-pin/8-pin/SATA connector, the indicator on the left shows the output voltage (+12V + 3.3V + 5V).

Comidox 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester

CP218 by Comidox

Comidox 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester
  • The LCD power tester is a powerful power test device. This power tester only needs to be connected to the ATX connector of the power supply to easily and intuitively know whether the output of each power supply is normal. It can detect ATX, BTX, ITX, TFX computer power supply, and can display various voltage and PG values in liquid crystal to quickly detect the performance of computer power supply.
  • The LCD displays various parameters such as output voltage and PG. When each parameter exceeds the normal value, the buzzer will sound a warning and the corresponding value will flash.
  • It can measure the voltage of each group of power supply 3.3V/+5V/+12V/-12V/SB+5V/PG, and also measure the output wire P4/P6/P8/SATA/IDE, external DIE/SATA/P6/P8 is the light Displayed, there is no LCD voltage. Only the 24pin or 20pin will have the LCD voltage.
  • It has LCD intuitive and accurate display voltage (+/-0.01V), automatic fault alarm, complete test interface, small and beautiful appearance, and many test functions. It is the best choice for quickly detecting PC power.
  • Support 20Pin, 24Pin ATX interface / SATA interface / 4Pin, 8Pin interface / PCI-E graphics card 6Pin interface / floppy drive interface / ATE hard disk interface.

Optimal Shop 20/24 4/6/8 Pin Power Supply Tester for SATA – 💲 Best Budget Power Supply Tester

by Optimal Shop

  • Dimensions: 3 x 1 x 2 inches
Optimal Shop 20/24 4/6/8 Pin Power Supply Tester for SATA
  • The Power Supply Tester is a Robust Voltage,Tester for PC-Power Suppluy.Protect Your Computer from Damage.
  • Green LED display lights-up when your devices is running smoothly. VOLTAGE TEST:+12V,-12V +5V,-5V +3.3V, 5V STAND BY(SB)12V, POWER GOOD(PG).
  • Easy to use.The Operation Instruction on The Face of Tester.
  • CONNECTORS:FLOOPY,HDD,CDROM,SATA,4PIN(P4),8PIN(DUAL-CPU),6PIN(PCI-EXPRESS).
  • Optimal Shop Carefree 12 months warranty and friend customer service.

Kingwin PC Computer Power Supply Tester

KPST-01 by Kingwin

  • Release date: 08/01/2019
  • Weight: 0.1 pounds
  • Dimensions: 3 x 2 x 1 inches
  • Warranty: 1 year
Kingwin PC Computer Power Supply Tester
  • Robust voltage tester for PC power supply
  • Easy to read digital LCD display
  • Test ATX Power supply with ease
  • Made out of aluminum casing
  • Accurate Voltage Indicator +/- 0. 1V (+12V1 / +5V / +3. 3V / 5VSB / +12V2 / -12V)

HDE 20+4 Pin LCD Power Supply Tester for ATX

4328505392 by HDE

  • Color: Black
HDE 20+4 Pin LCD Power Supply Tester for ATX
  • Easily test your computer power supply and avoid damage to computer equipment | No batteries required
  • Compatible with ATX, BTX, ITX power supplies
  • Voltage Source: 20/24pin (ATX-connector) | Voltage Test: +3.3V, +5V, +VSB, and +12V
  • Size: 4.75” x 2.5” / 12.07cm x 6.35cm; Color: Black
  • Package Contents: 1x Digital Power Supply Tester, 1x Instruction Sheet

axGear Power Supply Tester PC Computer LCD 20/24 Pin 4

POWER-TEST-V2 by axGear

axGear Power Supply Tester PC Computer LCD 20/24 Pin 4
  • The power supply tester is a robust voltage tester for PC-power supplies
  • ATX . BTX, and ITX compliant power supplies can be tested
  • LCD display indicate the status of voltage
  • The PC / SPS is suitable for the ambitious hobbies, as well as for a quick functional check in a specialized trade
  • Test the power supply and avoid damage to computer equipment; no batteries needed

JacobsParts 20+4 Pin LCD Power Supply Tester for ATX

by JacobsParts

JacobsParts 20+4 Pin LCD Power Supply Tester for ATX
  • Easily test your computer power supply and avoid damage to computer equipment • No batteries required
  • Compatible with ATX, BTX, ITX power supplies
  • Voltage Source: 20/24pin (ATX-connector) • Voltage Test: +3.3V, +5V, +VSB, and +12V
  • Size: 4.75" x 2.5" / 12.07cm x 6.35cm; Color: Black
  • Package Contents: 1x Digital Power Supply Tester

Tan QY PC Power Supply Tester 20/24 Pin PSU ATX

NA by Tan QY

  • Color: Black
Tan QY PC Power Supply Tester 20/24 Pin PSU ATX
  • Prevent electrical disasters by periodically testing power supplies and discover problems before damaging your computer
  • Compatible with ATX, BTX, ITX
  • Voltage Test: +3.3V, +5V, +VSB, -5V, -12V and +12V
  • Sturdy plastic. Tests PC 20/24-pin, PSU, ATX, SATA, HDD.
  • Green LED display lights-up when your devices is running smoothly.

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