4-port MST DisplayPort KVM switch with dual 4K HDMI out  

4x 4K single-head DisplayPort computers to 2x 4K HDMI extended-desktop screens, with audio support 

SM-MST-4D - a DisplayPort version 1.2a compliant device - is a KVM switch that allows a user to access and control four single-head DisplayPort computers from a single USB keyboard/mouse and two HDMI monitors supporting extended desktop.

SM-MST-4D converts a single DisplayPort 1.2 input signal to two separate HDMI output connections through advanced MST (multi-stream transport) technology. This allows a user to extend their desktop display to two screens and achieve resolutions of up to 4K (3840x2160 @ 30 Hz) on each connected monitor from any connected single-port DisplayPort computer.

Features and Benefits
• Supports Windows 7 and later
• Single-head DisplayPort to dual-head HDMI video interface for each connected computer
• Resolutions up to 4K UHD (3840x2160 @ 30Hz) per display
• DisplayPort 1.2a dual mode receiver
• HDMI/DVI operation up to 320MHz
• Max video input resolution 4K @ 60Hz
• MST (multi-stream transport) supports up to 2 streams
• Supports RGB or YCbCr
• Supports balanced speakers output and switching
• Front panel tactile buttons with LED indicator
• External power supply - Level VI efficiency

Package Includes
• SM-MST-4D switch
• Power adapter [PS12V2A]
• 3.5 mm to DB-9 serial cable [CC35DB9]
• KVM cables are not included - see listing below for compatible KVM cables required per computer port

Required Cables (per port)
1x DisplayPort, male-male
1x USB, Type-A to Type-B
1x Audio, 3.5mm, male-male