What is the DPN-4Quad? DPN-4Quad is a dedicated multi-platform KVM switch capable of managing up to 4 different computers through four DisplayPort monitors, one USB keyboard & mouse, a single set of speakers and a USB 2.0 Device. How to control DPN-4Quad The USB emulation technology utilized by DPN-4Quad enables immediate hotkey source switching through a remote USB keyboard and mouse. DPN-4Quad uses DisplayPort connectors providing high resolutions of up to 4K (3840ÃÃÂÃÂ2160 @ 30Hz) with zero pixel loss from TMDS signal correction. Features: Supports Mac, PC, Linux and Sun Mac OS, Sun OS, Unix Supports 4K (3840ÃÃÂÃÂ2160 @ 30Hz) HD resolution Quad-head DisplayPort video (supports 4 local monitors) Supports all USB 2.0 Devices Control Sun, Mac or PC computers from a common KVM console Compatible with all major software including Windows, Linux, Mac OS, Sun OS, Unix Upgradable firmware Simple front panel buttons for source switching Balanced stereo audio output Supports RS-232 commands Optional TCP/IP web-based control interface Hot-key commands for quick channel selection. Independent switching between KVM and peripheral USB/audio ports. Plug-and-play ready!