Stay powered with the DENAQ DQ-384020-7450 19V 4.74A AC Adapter. Compatible with HP and Compaq HP Business Notebook, Tablet PC, and Presario Series Laptops, this adaptor produces a reliable 19V/4.74A power supply for a reliable charge. The 7.4mm-5.0mm DC tip is a reliable fit for your machine, ensuring a secure connection.