Black Box Deskvue KVM-Over-IP Multisource RX 4 Monitor 4K HDMI Audio

4 Port Secure KVM MTRX Switch SH DVI-I USB CAC 4X4

Black Box Part# SS4P-DVI-4X4-UCAC

Various Routing / Switching Devices – TAA Compliant – KVM Switchbox - 3840 x 2160 Maximum Video Resolution - 4 Computers Supported - 4 Local Users Supported - 120V AC to 230V AC Input Voltage Range - 20 USB Ports - 8 DVI Ports - United States - 2.7" ...