About this item Output: 19V ~ 2.37A ~ 45W, Input: 100~240V / 50~60Hz; Connector: 3.0mm * 1.1mm, Please Check the Connector Type is 3.0X1.1MM, Not 5.5X1.7 MM. Compatible with various Laptop models including Aspire 5 series. CE/FCC/RoHS Certified. Provides multiple protection features such as PTC/Cyclic/Over-Charging/Over-Voltage/Over-Temperature/Over-Current/Short-Circuit/Over-Discharge Protection. Dimensions: 7.5 x 5.1 x 1.8 inches.