Amazon.com: 4x1 HDMI KVM Switch 4 Port Ultra HD 4K@30Hz, USB 2.0, HDCP 1.2, No Power Adapter Required, Support Wireless Input Device and Hotkey Switch, with 4 HDMI and USB Cables : Electronics
USB VGA KVM Switch 4 Port KVM Switch for 4PC Computers Sharing One Monitor 3 USB | eBay
HDMI KVM switch 4 port 4K60Hz with EDID,USB hub TESmart