Dell 90w AC Adapter (E5 next gen) (including converting dongle 7.4- 4.5mm) 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. 90W AC Adapter, E5 Next Gen, Including Converting Dongle 7.4mm to 4.5mm: 90W power adapter for Inspiron 15 (1545), Inspiron 17 (1750), Latitude E5400 and other models Tested and validated with Dell laptops Sleek and streamlined design Includes 7.4mm to 4.5mm converting dongle Surge protection to keep your laptop safe from unexpected electrical spikes