About this item Input: 100~240V~1A 50/60Hz Output: 19.5V-3.34A-65W Connector Size: 4.5*3.0mm. Compatible with Inspiron 11, 13, 14, 15, 3000, 5000, 7000 series laptops Compatible with Vostro 13, 14, 15, 16, 3000, 5000, 7000 series laptops Portable Design: One adapter compatible with many models of laptops. The lightweight design allows for an incredibly small footprint, making it easy to slip into bags, purses, and even pockets while traveling. Size: 7.2 x 4.5 x 1.9 inches.