Papeaso Video Capture Cards, 4K HDMI Video Capture Device, 1080P HD 30fps Live and Record Video Audio Grabber for Gaming, Streaming, Teaching, Video Conference (Silver) - Newegg.com
Vanco EVSW41KVM HDMI 4K 4x1 Multiview Selector Switch and KVM USB Control
HDMI KVM Switch Dual PC to Single Monitor (2 in 1 out) with 3x USB Port 6942949022320 | eBay
TCNEWCL KVM Switch, USB HDMI Switcher 4Kx2K@30Hz for 4 Computers Sharing One HD | eBay
4 Ports 4K HDMI USB KVM Switch with USB 3.2 Gen 1, Audio, EDID, MKAG-E3114
2 Port Cable HDMI KVM Switch – techraki
KVM Switch USB & HDMI Switcher for 4 Computers Sharing One HD Monitor and 3 U... | eBay