ANiceS 5V AC/DC Wall Charger Power Adapter for Lenovo ThinkPad Tablet 1838 1839 10.1" 100% NEW and High Quality Over Voltage Protection, Over Heat Protection. / Connecter Size : Micro USB 5pin (ref to the pictures) Input Voltage: AC 100-240V (Worldwide AC Input) Input Frequency: 50-60Hz. Output: DC 5V 2000mA(Max). / Note: Please make sure the DC output and tip size of ac adapter are accordant before you buy. Fast & Free Shipping