Review on Efficient Power Supply Tester: Optimal Shop 20/24 4/6/8 Pin - SATA, IDE, HDD, ATX, ITX, BYI Connectors (Black) by Reginald Sealy

As the title says I need to make a slight modification to fit 4+4 modular cables. The clamp interferes with some 4+4 and maybe some 6 pin connectors. 30 second fix with Dremel. With these types of testers, I think they're just there to apply voltage to the connector. Need a LCD display type to check if the voltage is within specification range. As for other reviews that mention -5V instead of lighting, most modern PSUs (ATX 24-pin) don't have -5V. Some for backward compatibility reasons. The label on your power supply contains the specifications for the output.