A power interface for a mobile terminal, comprising: a plug shell , wherein a first baffle is arranged in the plug shell ; an encapsulation member , wherein the encapsulation member comprises a first encapsulation portion and a second encapsulation portion , and the first encapsulation portion and the second encapsulation portion are configured to match with and cooperate with each other; a plug body , arranged in the plug shell and wrapped by the encapsulation member , wherein a snap-fit flange disposed on the second encapsulation portion is arranged on the plug body ; and a second baffle , located in the plug shell and connected to the plug shell , wherein the second baffle is spaced apart from the first baffle , the snap-fit flange is sandwiched between the first baffle and the second baffle ; wherein the plug body is configured to be connected to a circuit board and comprises at least one pair of power pins and a plurality of data pins , and each pair of power pins comprises a pair of sub-pins spaced apart from each other in an up-down direction; the encapsulation member is configured to fix the at least one pair of power pins and the plurality of data pins ; characterized in that at least one of the pair of sub-pins comprises an expanded portion , and the expanded portion has a cross-sectional area larger than that of each of the plurality of data pins of the plug body to increase a current load of the at least one of the pair of sub-pins ; a recess is defined in the expanded portion at a position that is close to an end of the at least one of the pair of sub-pins away from the second baffle . a plug shell , wherein a first baffle is arranged in the plug shell ; an encapsulation member , wherein the encapsulation member comprises a first encapsulation portion and a second encapsulation portion , and the first encapsulation portion and the second encapsulation portion are configured to match with and cooperate with each other; a plug body , arranged in the plug shell and wrapped by the encapsulation member , wherein a snap-fit flange disposed on the second encapsulation portion is arranged on the plug body ; and a second baffle , located in the plug shell and connected to the plug shell , wherein the second baffle is spaced apart from the first baffle , the snap-fit flange is sandwiched between the first baffle and the second baffle ; wherein the plug body is configured to be connected to a circuit board and comprises at least one pair of power pins and a plurality of data pins , and each pair of power pins comprises a pair of sub-pins spaced apart from each other in an up-down direction; the encapsulation member is configured to fix the at least one pair of power pins and the plurality of data pins ; characterized in that at least one of the pair of sub-pins comprises an expanded portion , and the expanded portion has a cross-sectional area larger than that of each of the plurality of data pins of the plug body to increase a current load of the at least one of the pair of sub-pins ; a recess is defined in the expanded portion at a position that is close to an end of the at least one of the pair of sub-pins away from the second baffle . <EOS>