About this item Input: 100 - 240V / 50 - 60Hz, Output: 19.5V 3.33A 65W Blue Tip Size: 4.1 x 1.8 x 1.1 inches Compatible with various models including Envy x360, ProBook, EliteBook, Zbook, and others. Dependable Protection: built-in multi safeguards and cooling system to protect against overcharging, short circuiting, overheating, spark, intelligently monitoring temperature to safeguard your devices. Size: 4.1 x 1.8 x 1.1 inches.