Perfect for connecting two digital input devices to one HDTV output device. Inputs can either be two HDMI or two DVI or one of each to an HDMI or DVI output. Also A/B switched are the audio sources which can be either a single digital RCA or twin (left and right) conventional stereo inputs. Inputs HDMI x 2 DVI-D x 2 Digital Coaxial RCA x 2 Stereo Audio RCA (L-R) x 2 Outputs HDMI x 1 DVI-D x 1 Digital Coaxial RCA x 1 Stereo Audio (L-R) RCA x 1 Please Note: This unit does not perform HDMI to DVI or DVI to HDMI conversion. It is a passive unit. Equivalent to HDAS-100G.