About this item Output: DC 19.5V 3.34A 65W Input: AC 100-240V 1.6A 50-60Hz Connector Size: 4.5 x 3.0mm Prongs: 3-Prong Package: 1x AC adapter and 1x AC power cord Compatible for OptiPlex Micro Desktop Power Adapter Safety: This laptop charger is UL/CE/FCC/RoHS certified for safety. 100% new from manufacturer, 100% compatibility with OEM laptop AC chargers/adapters. Built-in overload, over-voltage, and short circuit protection. Dimensions: 3.5 x 1.5 x 1 inches.