Coolmax LCD Power Supply Tester PS-228 Features Large, backlit LCD display Compatible with 20-pin and 24-pin PSUs Introduces the new 8-pin PCI-Express connector The easiest method to accurately test or diagnose faults with your PC Power Supply Unit Accurate readings up to +/- 0.1 V The easiest method to accurately test or diagnose faults with your PC Power Supply Unit Introduces the new 8-pin PCI-Express connector Accurate readings up to +/- 0.1 V Compatible with 20-pin and 24-pin PSUs Features Large, backlit LCD display