1. Now the number of power output groups is increasing, as long as one of the problems arises, the hardware of the computer system may not work well or even burn out the accessories.2. The power tester only needs to connect the ATX connector on the power supply to simply and intuitively know whether the output of the power supply is normal.3. The JW power tester is a powerful power test device.4. It can detect ATX, BTX, ITX, TFX computer power, and can display LCD voltage and PG value. It can quickly detect the computer power and facilitate the instrument.Specifications:Voltage input: 20/24pin (ATX connector)Voltage detection: +12V, -12V, +5V, -5V, +3.3V, 5V Stand by (SB) 12V power Good.Connection ports: Floppy, HDD, CDROM, SATA, 4 pin (P4), 8 pin (Dual-CPU), 6 pin (PCI- Express)Operation Manual:1. Put the power supply 24PIN and P4, P6 or P8 (the 3 plugs should insert at least one, otherwise +12V2 does not have voltage display) plug into the corresponding location of the power tester.2. Turn on the power supply power, at the same time "drop" sound two times boot sound, each value were not flicker, indicate the power supply output voltage is normal.3. If a voltage signal is not detected, or the detected voltage is beyond the normal range, the buzzer will give out a warning for a long time, and the corresponding voltage or PG value will blink. It indicates that the power supply is a fault power1 x Power Supply Tester