4-port DisplayPort KVM switch 

with USB 2.0 sharing, to access and control four DisplayPort computers from a single USB keyboard/mouse and one DisplayPort monitor 

SM-DPN-4S is a multi-platform KVM switch capable of managing two computers through one monitor, one USB keyboard/mouse, and a set of speakers, while sharing USB devices like printers, memory devices, scanners, etc.

SM-DPN-4S supports resolutions of up to 4K 3840x2160 @ 60 Hz with zero pixel loss from TMDS signal correction.

Flexible Control
Any external device or program supporting RS-232 can control SM-DPN-4S. SM-DPN-4S uses a very simple protocol, enabling easy integration with the RS-232 control devices.
A front-panel push-button along with keyboard hot-keys also allow the user to switch and control all the different functions of the KVM switch.

The USB emulation technology utilized by SM-DPN-4S 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.

Flexible Sharing
SM-DPN-4S supports independent simultaneous device selection. It enables the use of a USB keyboard and mouse on one computer while other USB peripherals such as speakers, scanners and printers are connected to the other computer source. SM-DPN-4S maintains the ability to switch all connected devices to any one of the computer sources as with any other KVM switch in the market.

Features and Benefits
• DisplayPort video connectors
• Supports all major operating systems like Windows, Mac, Linux, Sun, Unix, DOS, etc.
• Supports resolutions up to 4K 3840x2160 @ 60 Hz
• Zero pixel loss with TMDS signal correction
• Supports USB keyboard and mouse
• Supports additional USB 2.0 devices like printers, scanners, web cameras and more
• Flash upgradeable firmware
• Stereo audio support
• Front panel push-button for manual port selection
• Hot-key commands for quick port selection
• RS-232 for remote control
• Independent (asynchronous) switching of KVM and peripheral USB/audio ports; Users can listen to audio from one computer while working on a different computer, or scan a document and save it on another computer
• Complete keyboard emulation for error free booting

Package Includes
• SM-DPN-4S switch
• Power adapter [PS12VD2A]
• KVM cables are not included - see listing below for compatible DisplayPort KVM cables required per computer port