About this item Features: Strong, durable construction and compact design. Charges your device at maximum current and full speed. Charging will automatically stop when the battery is full. Laptop Charger Output Max: 19.5V 4.62A 90W (19.5V 3.34A 65W and 19.5V 2.31A 45W are also compatible) Input Volt Range: 100-240V-50/60HZ, Connector size: 4.5*3.0mm. Compatible with various models in the Inspiron 15 7000 Series and 5000 Series, as well as several models in the Optiplex line. Built-in multi safeguards and cooling system to protect against overcharging, short circuiting, overheating, and spark, intelligently monitoring temperature to safeguard your devices. Dimensions: 7.99 x 4.49 x 1.34 inches.