About this item Compatibility with HP Devices: Seamlessly power your laptops with our premium 135W Adapter; Input: 100-240V 50-60 Hz, Output: 19.5V, 6.9A, 135W; Connector Size: 4.5 x 3.0mm Blue tip. Compatible with various laptop models across different series, this adapter is a perfect replacement or backup power source that meets original manufacturing standards. Safe and reliable: This 135W laptop charger features an intelligent protection system to effectively prevent the battery from issues such as over-charging, over-current, over-voltage, overheating, and short circuits. Enhanced Durability: Built to last, our AC Adapter boasts robust construction that withstands rigorous daily use while ensuring longevity. Dimensions: 7.78 x 5.38 x 1.38 inches.