Input: 2*HDMI or 1*HDMI Output: 1*HDMI or 2*HDMI Support HDMI 2.0 version, 3D, CEC, EDID and HDCP1.4 Supports 40m 1080P long distance transmission with HDMI cable 1M 30 AWG cable for input and 1m 30 AWG cable for output(4K@60Hz) 12M 26 AWG cable for input and 12m 26 AWG cable for output(4K@30Hz) 20M 24AWG cable for input and 20m 24AWG cable for output(1080P@60Hz) Support bidirectional switch of signal source and display 1 HDMI source to 2 monitors ,Only one selected screen is displayed Product size: L51.5*W51*H14.5mm