The UltraAV 1x4 HDMI Splitter and Distribution Amplifier mirrors a single HDMI audio/video source on up to 4 HDMI displays for support of resolutions up to 1080p. The UltraAV splitter features a solid metal housing that provides an effective barrier against the unpredictable, harmful effects of Radio Frequency (RF) and Electromagnetic Interference (EMI). The housing includes integrated mounting tabs enabling the splitter to be easily mounted.The splitter supports a cascade of up to 3 UltraAV splitters for an expanded display array. To create a two layer cascade, two same distribution amplifiers must be used. Run an HDMI cable from an output on unit #1 to the input of unit #2. A 2 layer cascade of the UltraAV 1x4 HDMI splitter will support up to 7 outputs.