... supply tester is a robust voltage tester for PC power supply.ATX,BTX and ITX compliant, power supplies can be tested.LCD's ... for the ambitious hobby user,as well as for a quick functional check in specialized tradeThe methods of operationPlug power supply ... good(PG) Connectors:floppy,HDD,CDROM,SATA,4pin(P4),8pin(Dual-CPU),6pin(PCI-Express) power supply tester