Product POWER MAX: 45W, AC Input: 100 - 240V 50 - 60Hz, Output: DC 5V-3A, 9V-3A, 19.5V-2.31A Connector size: 4.5*3.0mm OSISZI 45W Laptop Charger Compatible with HP EliteBook Folio 1020 G1 1040 G1 G2 9470M 9480 Compaq 15 15-h SlateBook 14-p Computer Power Adapter with Blue Tip(4.5*3.0mm) 45w laptop charger has a built-in heat dissipation system to prevent the charger from overheating at full power output. The built-in IC chip technology provides overload/short-circuit /overheat protection, so theres no worries about damaging functional devices. Portable & Compact Design: this lightweight 45w laptop charger fits easily in your laptop bag or pocket, making it ideal for travel, work, or school. What You Get:1 * 45W 4.5*3.0mm Power Adapter and 1 * Power Cord,Best Customer service