This 4 port usb 30 displayport kvm switch lets you control four displayport dp 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 expense of separate equipment the usb 30 hub automatically switches your connected usb devices to the