Dell latitude 5480

Dear Dell Community,

Years ago, I purchased a Dell Latitude 5480. It came with a power supply/charging cable that consists of two cords that plug into each other, and one plugs into a wall outlet on its other end, while the other plugs into the laptop on its other end. I'd like to replace this cord, and I no longer have the original. What specs are required of a replacement cord?

Thank you.