POWER SUPPLY TESTER; This power detection tool is compatible with ATX, BTX, ITX, LCD display of different voltages and PG values, testing the performance of the computer without battery PROTECTOR; LCD power tester can test computer power and avoid damaging your expensive computer device SUITABLE FOR; The power tester is suitable for computer enthusiasts and professionals LCD FUNCTION; The output voltages are displayed on the LCD screen, which is easy to read (the LCD screen is powered by a 20 pin / 24 pin connector). It comes with a protective film which can be removed if desired EASY TO USE; Power supply power supply, hear the buzzer of \ " " DuDu \ " ", if there is no lightning, the power supply output voltage is normal. If a certain voltage signal was not detected or if the detected voltage value is higher than normal, the device gives Product descriptions ATX Power Supply Tester 20 24 Pin SATA LCD PSU Diagnostic Voltage Tester This is a great tool for testing the correct voltage outputs for a 20/24 pin ATX PC power supply Description of Robust voltage tester for PC power supply ATX, BTX and ITX compliant easy-to-read LCD display LEDs indicate voltage status The PC / PLC is intended for the ambitious amateur user as well as for quick control of functions in the professional field. Voltage source: 20/24 pins (ATX connector) Voltage test: 12V, -12V, 5V, -5V, 3.3 V, 5V standby (SB) 12 v Power Good (PG) Connections: floppy disk, hard disk, CD-ROM, SATA, 4-pin (P4), 8-pin (dual) -CPU), 6-pin (PCI-Express) Scope of delivery 1 x voltage tester