StarTech.com 4K 60Hz DisplayPort KVM Switch with integrated USB 2.0 hub - KVM - LDLC 3-year warranty
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 - Buy
4-Port USB KVM Switch Kit w/ Audio - TRENDnet TK-409K
4-port USB Boundless KM Switch (Cables included) - CS724KM, ATEN Desktop KVM Switches | ATEN U.S.A.