most car USB ports are slow charging. my little power port convert provides fast charging. so not only do i get the extra speed, but the assurance that the USB isn't nefarious. which admittedly is probably a bit paranoid, but what if i'm not?!

i didn't even like having my phone data sunk to a my own personal car. it just made no logical sense on why that would be useful, so being me, i just assumed it was for nefarious purposes. people no longer get the benefit of the doubt of being lazy/incompetent. i immediately jump to the situation essentially being an attack vector.