It's a chip inside the charger brick. * https://imgur.com/gallery/spoof-original-dell-laptop-power-supply-by-splicing-authentication-chip-absz7QI https://imgur

It's a chip inside the charger brick. * https://imgur.com/gallery/spoof-original-dell-laptop-power-supply-by-splicing-authentication-chip-absz7QI https://imgur.com/gallery/spoof-original-dell-laptop-power-s...