The last time Roku properly refreshed its line of media streamers was back in 2011 with the Roku 2 series but we're apparently in for at least one new addition, if not a whole new line. This 4200X (the current players are in the 2000/3000 series) just popped up in the FCC's database, although most of the juicy information was withheld. Still, as seen above, its measurements indicate a box that's just 2.25-inches on each side, smaller than the current top of the line Roku 2 XS which is 3.3-inches long on each side. Other than WiFi with 2 and 5GHz bands we didn't uncover much else, although we wonde
