Supported Resolution: Video Pass-through Up to 4K @ 50/60Hz (YUV4:4:4), DOES NOT SUPPORT 1440@120hz, 4K @ 30Hz, 1080P @ 120Hz and 1080P 3D @ 60Hz. HDA-912 Audio Extractor - designed to extract audio from any HDMI compliant source and converts it to Optical S/PDIF or high-quality stereo 3.5 mm audio output | Input: 1x HDMI, Output: 1x HDMI, 1x L/R Audio Out, 1x Optical Out (S/PDIF).