BZBGear BG-PS21-4K 2-Port 4K KVM Presentation Switcher

The BG-PS21-4K puts an HDMI source and a USB-C source on the same display at up to 4K60 4:4:4, and shares one keyboard and mouse between them through its USB-A ports. Switching happens automatically when a signal appears on HDMI.

That covers the common lectern problem: a resident room PC and a visiting laptop, one screen, and nobody swapping cables. Audio is de-embedded to a balanced stereo output, carrying LPCM 7.1, Dolby Digital Plus and DTS-HD Master Audio. HDMI is 2.0 with HDCP 2.2, USB is 3.0, and HDR10 and CEC pass through.