Professional 4K 2x2 Video Wall Controller Seamless HDMI Processor Upto 4K@60hz (UHD-204VW) | OREI
KanexPro 1 x 4 HDMI UHD 4K Video Wall Processor VW-SP1X44K B&H
Kramer 4K60 HDMI Extended EDID Processor PT-2C B&H Photo Video
Luxury Immersive Audio Preamp/Processor Brand StormAudio Leaps the Competition with Implementation of Channel's Most Advanced HDMI Card - Sound & Video Contractor
MuxLab 4x2 HDMI 2.0 Quad-View Processor (UK Power Plug)