The 2×4 HDMI Switcher/Splitter can connect two hd signalsources to four hd display terminals. It allows two hd signal sources to besplit to four hd displayers or projectors easily. And it can amplify the HDMI signal at the same time. The two signal sources can be switched freely.The 2×4 HDMI Switcher/Splittercan support all hd multichannel video formats including 720p, 1080i, 1080p. Italso supports the 3.5 mm headphone audio output andSPDIF audio output.