2 in 1 out DisplayPort KVM Switch: DP KVM Switch is a displayport switch that help 2 computers/laptops to share 1 monitor and 4 USB 3.0 devices such as scanner, printer, mouse, keyboard. Ultra 4K@120Hz Visual Enjoyment: Displayport KVM switch for 2 computers support resolution up to 8k@60Hz,backward compatible with lower resolution.If need 8k@60Hz, then need DP cable is DP1.4 cable. Note:Final resolution is also subject to graphic cards, monitors, cables and adapters and how those work together. DP KVM Switch with 4 USB 3.0 Ports: Displayport USB 3.0 KVM switch with 4 USB 3.0 ports which can recognize keyboard,mouse,printer,scaner and other USB devices. USB 3.0 offers data transfer speeds of up to 5Gbps, while USB 2.0 offers data transfer speeds of only 480Mbps.