While Amazon’s new Fire TV STB (UltraHD for $100 With Amazon) can show UltraHD content, a significant failing has been discovered by Consumer Reports – it is limited to 30fps. Amazon has chosen to use the HDMI 1.4 standard, rather than 2.0, so the box cannot show HDR content – rather odd, considering that Amazon Prime holds content with that feature! The UltraHD resolution is also limited to 30fps.