... test +12V , -12V , +5V , -5V , +3.3V , +5V Stand by (SB) 12V power Good ( PG ) Connectors : Floppy, HDD , CDROM , SATA , 4pin ( ... Product Introduction: The SD power supply tester is a robust voltage, tester for PC-power supply, ATX . BTX and ITX compliant, power supplies can be tested ... in specialized trade.The methods of operation: Plug power supply 24 PIN and P4 , P6 or P8 into the corresponding jack ...