... tester is a robust voltage, tester for PC-power supply, ATX . BTX and ITX compliant Feature100% Brand New. Weight 81gSize ... ( about ) 12 x 6x 2 cmVoltage source 20/24 pin ( ATX - connector )Voltage test +12V , -12V , +5V , -5V , +3.3V ... tester is a robust voltage, tester for PC-power supply, ATX . BTX and ITX compliant, power supplies can be tested ... LCD Power Supply Tester 20/24 Pin PSU ATX SATA HDD