The Osprey Raptor Series 927 PCle Capture features one HDMI connection rated at 4K30 (HDMI 1.4) plus one SDI connection rated at 3G. The HDMI Input supports 8 embedded Audio Channels (4 Stereo), the SDI input 16 embedded Audio Channels (8 Stereo). In addition to embedded Audio, Osprey 927 also supports a pair each of Balanced and Un-Balanced Analog Stereo Audio.