Keep your Dell laptop powered and running with this 90W AC Adapter. It's ideal for those who need a second adapter for travel or a replacement adapter for their current laptop. It features built-in surge protection to keep your laptop safe from unexpected surges and spikes. The Dell power adapter is compatible with a variety of models including the Inspiron 15 (1545), Inspiron 17 (1750), Latitude E5400 and others. It also includes a 7.4mm to 4.5mm converting dongle.