For samsung NP550P5C NP700Z7C NP770Z7E NP780Z5E NP870Z5G laptop power supply power AC adapter charger 19V 4.74A

For samsung NP550P5C NP700Z7C NP770Z7E NP780Z5E NP870Z5G laptop power supply power AC adapter charger 19V 4.74A

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