Many laptops require you to use a ‘genuine ... it also allows the manufacturers to increase the price of their chargers. Dell uses the 1-Wire protocol to communicate with the charger ...

Charge laptops and more simultaneously with this one charger to rule them all -- but only if you order it ASAP.

Wondering if a 100W charger is safe for your 65W laptop? Here's what you need to know about compatibility and power delivery.