Amazon.com: KVM Switch HDMI 2 Port Box,ABLEWE USB and HDMI Switch for 2 Computers Share Keyboard Mouse Printer and one HD Monitor,Support UHD 4K@60Hz,with 2 USB Cable and 2 HDMI Cable :
Amazon.com: KVM HDMI Switch 4 Ports, USB 3.0 KVM Selector Box with EDID Emulator Support 4K@60Hz Resolution for 4 Computers Share Mouse Keyboard and Monitor : Electronics
D2H-4P-S - 4-Port, 4K (UHD) DisplayPort-to-HDMI KVM Switch with USB Hub
HKM-PRO-S - 3-Port HDMI + 1 MHL-Port KVM switch with 3 USB 3.0 ports
Amazon.com: 4K HDMI KVM Switch, 4 Port HDMI USB Switch for 4 Computer Share a 4K@30Hz Monitor and 3 USB Device Keyboard Mouse Printer, Including 4 KVM Cables : Electronics
HDMI KVM switch 16 port 4K USB hub, Rackmount, RS232 TESmart