Multi-Stream Transport (MST) Hub: An MST Hub enables three different display modes on up to four monitors connected to a single DisplayPort output. Duplicate Mode: You can connect a single display at resolutions up to 4K@60Hz to mirror your computer’s desktop. Extended Desktop Mode: Connect two monitors and the hub will automatically extend the image to span the two displays at resolutions up to 4K@30Hz for each display. Video Wall Mode: Connect four monitors and the hub automatically adjusts to produce a 2x2 ‘video wall’, with the single image spanning the four displays at resolutions up to 1080p@60Hz for each monitor.