Control four hdmi computers using a single console with a built in usb 30 hub for sharing additional peripheral devices this 4 port usb 30 hdmi kvm switch lets you control four hdmi computers with a single monitor keyboard and mouse the kvm also features 35 mm audio and a built in 3 port usb 30 hub this kvm switch offers a built in 3 port usb 30 hub thats separate from your hid keyboard and mouse so you can share usb peripheral devices between each connected computer and avoid the