Dr. Power II is a fully automated power supply tester that enables users to easily and quickly determine if a power supply is defective or not. Cutting overall troubleshooting time considerably. Oversized easy-to-read LCD display and audible alarm helps user determine the exact cause of the failure, if there is one. An indispensable tool for any PC enthusiast or gamer!Connectors: 24-pin ATX MotherboardConnectors: 4-pin ATX12V MotherboardConnectors: 8-pin EPS12V MotherboardConnectors: 4-pin Peripheral DeviceConnectors: 6-pin PCI-EConnectors: 8-pin PCI-EConnectors: Serial ATAHeight: 5.1Width: 3"Depth: 1"Weight (Approximate): 4.94 oz"