About this item Product Type: Input: 100-240V, 50-60Hz Output: 19.5V 3.33A 65W Connector Size: Interior diameter: 3.0 mm; External diameter: 4.5 mm; (Note: Please make sure the DC output and tip size of the AC adapter are compatible before you buy) Replacement for compatible laptops including EliteBook and Probook series. This product is certified to comply with FCC/ROHS/CE standards. Size: 6 x 2.8 x 1 inches.