Hello Nick, Thank you for your interest in the 85H6510G. The HDMI ports are HDMI 2.0 and are all capable or transmitting 4K and Dolby sound. If you have any further questions please give us a call at 1-888-935-8880 or email us at email@example.com.
We look forward to hearing from you!
Harley with the Hisense Support Team