Features: The power tester only needs to connect the on the power supply to simply and intuitively know whether the output of the power supply is normal. The JW power tester is a powerful power test device. It can detect BTX, ITX, TFX computer power, and can display LCD voltage and PG value. It can quickly detect the computer power and facilitate the instrument. It is your best choice and reliable helper to quickly detect PC power. Package Includes: 1 Piece Power Tester Specifications: Item Type: Digital LCD Power Supply Tester Material: Aluminum Alloy Support 24Pin, 20Pin interface Support SATA interface Support 8Pin, 4Pin interface Support PCI-E graphics 6Pin interface Support the floppy disk interface Support ATE hard disk interface Test voltage: 3.3V, -12V, 12V1, 12V2 + 5 VSB, + 5V, and PG time Size: Approx. Pls see the Pictures note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment.