RocFly power Charge adapter Exclusively for Microsoft Surface Pro 4 (Core M) 15V 1.6A Adapter for Microsoft Surface Pro 4 ,Intel Core M Only, (can't for pro4 I5 I7) Ratings input : 100-240V ~ 0.66A. 50/60HZ Output :15V 1.6A Short Circuit Protection and Overload Protection Portable charger, easy to carry around, convenient for businessmen and travellers. Electromagnetic immunity and high charging speed