... robust voltage, tester for PC-power supply. ATX,BTX and ITX compliant, power supplies can be tested. LCD’s indicate the status of voltage ... (SB) 12V power Good (PG)Connectors : Floppy, HDD, CDROM, SATA, 4 pin (P4),8 pin (Dual-CPU),6 pin (PCI-Express) LCD power supply tester