This is an Open Box but never used. Maximize your high-end multi-monitor workstation with superior video resolution Share dual Cinema 4K DisplayPort monitors (4096 x 2160 @60Hz) Operate 2 DisplayPort computers with 1 keyboard, mouse, and 2 monitors Add another GCS1942 to expand up to four 4K monitors DisplayPort 1.2 compliant, HDCP compliant Allows independent switching of the KVM, USB, and audio devices Control/share USB3.0 peripherals between 2 computers; save money on duplicate devices Work on computer "A" without interrupting USB peripheral connectivity on computer "B" SuperSpeed 5Gbps transfer rate MST (Multi-Stream Transport) DP++ supports HDMI and DVI output Computer selection via front panel pushbuttons, hotkeys, or mouse Supports 7.1 HD audio through DisplayPort Full bass response for high quality 2.1 channel audio Mouse emulation or bypass feature supports most mouse drivers and multifunction mice Multi-platform support – Windows®7, Windows 8.1, Windows 10, Mac OS®, and Linux® Multilingual keyboard mapping supports English, French, and German keyboards Mac® keyboard support and emulation RS-232 Commands Auto-Scan Mode to monitor all computers Power on detection Hot pluggable Firmware upgradable Includes all KVM and audio cablesMST requires two monitors capable of DisplayPort 1.2 daisychaining, or use of an external DisplayPort MST Hub. PC Source must be DisplayPort 1.2 compliant. A DisplayPort 1.1a monitor can be the last monitor in a DP1.2 chain. Dual-Mode DisplayPort (DP++) requires active HDMI and DVI adapters for most display setups. Mouse port switching supported alongside mouse emulation mode using a USB 3-button mouse wheel. HD audio through DisplayPort cannot be switched independently. PC keyboard combinations emulate Mac® keyboards. DB9 to RJ-45 cable not included.