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Dell Latitude E7440 Power Supply Adapter Charger
How to choose your Dell Laptop AC Adapter?
1. Please determine the power connector size of your laptop, in order to select the connector size of the Dell Laptop AC Adapter. Normally, each brand notebook power interface has several different dimensions corresponding to different notebook models. Dell notebook interface to the most common sizes are 7.4*5.0mm and 4.5*3.0mm. Now there are many new Dell models having the newest power port - USB Type-C.
2. Please determine the voltage and current parameters your laptop required, in order to select the voltage and current parameters of the Dell Laptop AC Adapter. Sometimes the different configurations of the same laptop model requires different power parameters, so you need to check out what the parameters your laptop needs. You can find these parameters on a label at the bottom of the notebook, or you can also check it on the tag of your original Dell Laptop AC Adapter.
3. Dell has introduced several generations of their laptop power supply adapter charger that have different shapes, but their parameters and connectors have not been changed. They are universal. So if you find that our products have different shapes from your original Dell Laptop AC Adapter, please don't worry, they are compatible.
If you're not sure which power supply adapter charger your laptop needs or you have any doubts for the informations of our laptop power supply adapter charger, please contact us before placing the order.
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