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This practical converter adapts USB 2.0 A female port to DC 5.5x2.1mm power interface, adopting premium nickel-plated terminals for excellent corrosion resistance and stable conductive performance. It ensures steady power output for small electronic devices, simple plug-and-play operation without complicated setup. The durable and compact structure brings great portability and wide applicability. 5-piece value pack is cost-effective, ideal for daily maintenance, DIY power modification and multi-scene power connection demands.