Technical Specifications: Output: 20 V, 3.25 A ,65W Input: 100-240 V, ~ 1.5 A, 50-60 Hz Compatible with Yoga S740, Yoga 520, Yoga 510, 330-14, 330-15, 330-17, 130-14, 130-15, $340, $145, $540, 330S, 520S 520 BIS Certifcation Number: R411012912 Country of Origin: China Power Source Type: Corded Electric; Compatible Devices: Laptops