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This LCD computer power supply tester is designed to quickly and accurately detect the operating status of desktop power supplies. It supports mainstream interfaces including ATX, ITX, BYI, SATA, IDE and HDD connectors. The clear LCD screen shows real-time voltage data to help judge abnormal voltage, short circuits and power aging issues. Simple plug-and-play operation requires no drivers or complex settings. Sturdy and portable golden exterior ensures long service life. Perfect for DIY builders, repair technicians and daily hardware troubleshooting.