Features: Real-time monitoring: It can accurately monitoring the Power Supply power, helping users to keep abreast of the device's usage time and remaining power. Energy saving: It can help users manage power more effectively and avoid sudden power loss of the device due to power depletion. Extend Power Supply service：By regularly checking the Power Supply and using the power wisedly, helping to extend the Power Supply use. Increase portability: Helping users adjustments or recharging when need, increasing the portability of the device. User-friendly: Provides intuitively display of the power, enabling users to easily understand the Power Supply power, facilitating operates and use. Specifications: Voltage input: 20/40PIN (Power supply) Voltage Detection: +12V -12V +5V +3.30V 5VSB 12VPG Connections: for Floppy HDD 4pin 8pin(Double-CPU) 6pin(PCIE) Size:about 120x65x18.8mm/4.72x2.56x0.74in Package Includes: 1PC Power Aupply Tester note: Due to the different light effect, the actual color the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measuring difference due to manual measurement.