Guy-Tech Global 170W AC / DC Adapter Compatible with Lenovo Thinkpad W510 Series: Lenovo Thinkpad W510 4319-5XU 4319-64U 4319-65U 4389-22U 4389-23U 4389-24U 4389-2SU 4389-2TU

Input : 100V - 240V 50/60Hz Worldwide Voltage Use Replacement: This Adapter is a Brand New Replacement One, Not Original Over Voltage output Protection, Over Current output Protection. Short Circuit output Protection. High Power exchange efficiency to control working temperature and stable working.