About this item USB-C Connector AC Input voltage: 100 ~ 240V 50~ 60Hz, Output: 5V 2A/ 9V 3A / 15V 3A/ 20V 2.25A Compatible with various Chromebook models, including HP Chromebook 14, 11, x360, and more as well as devices like Acer, Lenovo, Asus, Dell, and Samsung. Intelligent automatic output of appropriate power supply for fast charging. Dimensions: 6.85 x 4.13 x 1.77 inches.