Specifications: Testing 24/20 PIN connector Testing ATX12V 4PIN / EPS12V 8PIN / PCI-Express 6PIN connectors Testing SATA connectors Testing large 4P connectors Testing small 4P connectors Accurate voltage indicator +5V/+3.3V/+5VSB/+12V1/+12V2/ -12V P.G signal display Features: 1. Compatible with ATX12V v1.3~v2.3 standard power supply 2. Accurate display of voltage values(±0.1V) 3. P.G. signal (Power good signal) too low / too high warning 4. Voltage too low / too high warning 5. Aluminum body, best for heat 6. LCD screen Parts: 1 year limited Labor: 1 year limited