android box with android tv os

[willsp28]

hey guys im looking for a android tv box that runs the official Android tv os, so it will be optimized to run on a tv, im wanting a cheap option maybe up to 50 dollars on ebay or Amazon, needs
usb ports, right now i have a android tv box running stock android and a roku but im not happy with either one, might consider Amazon fire tv box, as long as its android and has usb ports thanks