4-port USB Boundless KM Switch (Cables included) - CS724KM, ATEN Desktop KVM Switches | ATEN U.S.A.
4 Port HDMI KVM Switch Support Max 4K@30Hz Input Using one Set of HDMI Monitor | LINOVISION US Store
Triple Monitor KVM Switch 4 port HDMI 4K with USB hub-TESmart
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
4-Port USB KVM Switch Kit w/ Audio - TRENDnet TK-409K
VGA KVM Switch 4 Port, USB VGA KVM Switcher for 4 Computers Share 1 Monitor 3 USB Devices Keyboard Mouse Scanner Printer, Including 4 KVM Cables & Desktop Control
USB VGA KVM Switch 4 Port KVM Switch for 4PC Computers Sharing One Monitor 3 USB | eBay