BRAND NEW Replacement Wall Ac Adapter and Charger-Power-Cord, works as genuine parts, 100% OEM Compatible!! DC CONNECTER SIZE: Internal Diameter: 2.5mm, External Diameter: 5.5mm. POWER SPECS: Input Volt Range: AC 110-240V / Output: DC16V 4.5A. ABOUT US: We have been manufacturing the laptop battery and charger for 12 years. And We Promise the Quality for Customer. Perfect Customer Service: 24 x 7 email support. Your satisfaction is extremely important to us. If you have any doubts, please feel free to contact with us,Professional and friendly customer service will be provied for you.