(4) It supports PCM 2CH stereo audio only. Pls set the resolutions to 1080P. This 2x2 HDMI video image processor can connect up to 4 LCD TVs or other displays, which can support multiple display modes, such as 2x2, 1x1, 1x2, 1x3, 1x4, 4x1, 3x1, 2x1.
eBay