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4x4 HDMI Matrix Switch 4K with Quad Multi-Viewer, R232/IR TESmart
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LINK MX44-4KECO 4x4 HDMI Matrix Switch with Audio Outputs – MSTR Brand
Hall Technologies HSM-44-BX 4K 4X4 HDMI Matrix Switch
Ultra HD 4x4 HDMI Matrix Switch 4K @60Hz with IR Remote (UHD-404) | OREI
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HDMI Matrix Switch 4x4, 4K HDMI Matrix Switcher Splitter 4 In 4 Out Box with EDI | eBay