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This DC7909 to Type-C power adapter features a DC 7.9mm × 0.9mm female input and USB-C male output port. Equipped with a built-in PD automatic induction chip, it automatically identifies device power demands and delivers steady 140W max high-power charging. It effectively upgrades legacy DC power adapters to universal USB-C fast charging. Premium internal circuitry provides over-voltage, over-current and short-circuit protection for safe daily use. Mini portable design saves space, ideal for office, home and mobile power adaptation for laptops and smart devices.