I have an old dell xps 15 9550. I have it connected to 2 external monitors, a samsung 32' 4k monitor and an asus 24' 1920x1200 monitor. I use it plugged in almost always. For the last few months ...

USB ports have quietly turned into the default power outlet for phones, laptops, headphones, and even monitors, but the wattage behind that familiar rectangle is far from uniform. Depending on the ...