PSU Tester;Computer Power Supply Tester; PSU Tester.The SD power supply tester is a robust voltage tester for PC power supply.ATX,BTX and ITX compliant, power supplies ... P8 into the corresponding jack of the power test suite Power on the supply of power,will hear (DuDu" ring,if no ... stand by (SB) 12V power good(PG) Connectors:floppy,HDD,CDROM,SATA,4pin(P4),8pin(Dual-CPU),6pin(PCI-Express) Power Tester