Poly Studio X52 Video Conference Equipment - Medium Room Size Supported - White - TAA Compliant - 3840 x 2160 Video (Live) Video (Content) - H.323, SIP - 4K UHD - H.265, H.239, H.264 High Profile, H.264 AVC - 1 x Network (RJ-45) - 1 x HDMI In - 2 x HDMI Out - USB - Gigabit Ethernet - Internal Speaker(s) - Internal Microphone(s)