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This ATX PSU breakout board turns a regular desktop ATX power supply into a multi-functional bench power source. It outputs stable 12V, 5V and 3.3V voltage rails, integrated with USB A hub for plug-and-play power access. Built-in high-current fuse offers comprehensive circuit protection against overload and short circuit for safer use. Designed with multiple screw terminals for easy wiring and stable current transmission. Compact all-in-one kit perfect for electronic DIY, circuit repair, laboratory testing, chassis modification and daily multi-device power supply.