Extron SW4 HD 4K PLUS HDMI Switcher 4x1 w/ Power Supply

4K HDMI Multiviewer Switch 4x2 with PIP | Seamless Switcher with Toslink

MT-VIKI 8x8 Seamless HDMI Matrix Switcher 4K30Hz Rack-Mountable Digital

Extron MPS 409 Multi-Format Presentation Switcher – Used w/ Rack Ears

MT-VIKI 8x8 HDMI Matrix Switch 4K@30hz Rack Mount Switcher RS232

MT-VIKI 8x8 4K@30Hz Seamless HDMI Matrix Switcher w/Web GUI+Audio Out Rack Mount

MT-VIKI 8x8 HDMI Matrix Switch 4K@30hz Rack Mount Switcher HDCP1.4 3D EDID RS232

AMX DVX-3255HD-T 10x4 All-In-One Presentation Switcher NX DXLink HDMI Used