The 4-port HDMI KVM switch is suitable for office buildings, server hubs, industrial control rooms, hospitals, schools, police stations and government services. The multi-platform KVM switch capable of managing four 4K computers through a single HDMI monitor, USB keyboard and mouse combo. The HDN-4P’s HDMI connectors deliver top quality 4K HD (3840x2160p at 30Hz) for highly detailed visual operations. Both DisplayPort and DVI video connections are also supported via adapters (sold separately) and the device is backwards compatible with prior HDMI versions. The USB emulation technology utilized by HDN-4P enables immediate hot key source switching through the connected USB keyboard and mouse. Additional USB peripherals can be attached, like a USB printer. RS-232 control and front panel switching are supported.