This genuine OEM Delta power adapter is perfect for use with Acer and Dell laptops. With a voltage of 19V and output current of 1.58A, it provides a maximum output power of 30W. The connector tip size is 5.5mm x 1.7mm and it is compatible with various Acer Aspire models including Acer Aspire One D250, Acer Aspire One D150, Acer Aspire, Aspire One, Aspire One A150, and Acer Aspire One A110. In addition, it is compatible with other brands and has a California Prop 65 warning of 0. This power adapter is an essential accessory for your laptop and ensures that it is always fully charged and ready for use.