About this item Input: 100-240V, 50-60Hz; Output: 19.5V 3.33A 65W (Compatible With 19.5V 2.31A 45W); Connector Size: 4.5*3.0mm blue tip Compatible with various models including x360 13 15 M6; ProBook 640 G2 G3 G8 440 G3 G4 G5 450 G3 G4 G5; EliteBook 840 G5 G4 G3 850 G4 G3; Zbook 14u G4 G5 15u G3; Stream 11-d010nr 11-d010wm 11-d020nr 13-c010nr 14-z010nr 14-z040wm; Chromebook 14-q020nr 14-q030nr and many more. Dependable Protection: built-in multi safeguards and cooling system to protect against overcharging, short circuiting, overheating, and spark, intelligently monitoring temperature to safeguard your devices. Dimension: 7.2 x 4.65 x 2.01 inches.