SMAKN&reg; 1.8" LCD 20+4-Pin Power Supply Tester With 8/6/4-Pin Connectors 1.8-inch LCD 20+4-pin Power Supply Tester w/8/6/4-pin Connectors General Features: Voltage tester for your PCs power supply Easy to read1.8-inch LCD ATX, BTX and ITX compliant Aluminum casing +12V, +3.3V, +5V LED status lights Voltage Source: 20/24-pin ATX connector Voltage Tests: +12V -12V +5V -5V +3.3V 5V Standby (SB) 12V power good (P.G.) Unit Dimensions: