A:Answer Hi there! High Frame Rate (HFR) 4K@120Hz is supported in “HDMI In 4” on the QN90A. Should you have any concerns, please reach out to Samsung Support at: 1-800-SAMSUNG (ask for TVs), available 8AM -12AM EST M-F (9AM – 6PM EST Sat), text HELP to 62913, LiveChat on Samsung.com, or Email: https://www.samsung.com/us/support/#contact_us_for_support ^Gina