Competitive price; CE approved; LED; PC 20/24 Pin ; POWER SUPPLY TESTERProduct IntroductionThe power supply ... your 24 pin power supply connector to mini tester;Check LED light if ON or OFF (+5V, +12V,+3.3V,-5V ... -connector)Voltage test: +12V,-12V,+5V-5V,+3.3V,5V Stand by(SB) 12V, power Good (PG)Connectors: Floppy, HDD, CDROM ... pin(p4),8 pin(Dual-CPU). 6 pin (PCI-Express) LED power supply tester