How does a Dell laptop charger with a pin of the same wattage & specs which fits perfectly into an HP not work because it knows it is not an HP charger
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7.4x5.0 With Pin Inside Dc Power Charger Plug Cable Connector For Dell Laptop Adapter Charger Dc Connector 7.4*5.0mm Cable - Laptop Adapter - AliExpress
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Dell Genuine Original Laptop AC Power Adapter Charger 19.5V 3.34A 65 Watts Connector tip size 7.4mm x 5mm (with center pin) Part Number - PA-3E, PA3-E, PA-10, WK890, Y807G, 330-1826, Y808G, 330-1825,
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