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This soldering-type conversion test board is sold in 5 pieces per pack, designed for handmade electronic projects and circuit modification. It integrates Type-C female jack and standard 4P 2.54mm pin header, strictly follows USB2.0 wiring definition to ensure stable 5V power supply and normal signal conduction. Simple welding installation without complex operation, compact structure saves installation space. Widely applicable for small household appliances power transformation, electronic experiment testing, equipment interface refitting and various DIY electronic production scenes.