Verify MST support with your operating system manufacturer.
If more than three monitors are attached the fourth will be disabled. Note: Certain graphics adapters have limited MST support and will only output to three displays in total. Note: Different types of displays such as HDMI, DVI, and VGA are supported provided DisplayPort adapters are used. TWO 4K DISPLAYSAdd two HDMI displays up to 4K 60Hz to your Thunderbolt 3 Apple Mac at full native GPU performance.Supports popular display modes such as 3840x2160 60Hz (4K) and 1920x1080 (1080p) HDMI ONLYAdapter video output ports are HDMI only, DisplayPort displays are not supported.
4 Ports DisplayPort MST Hub is a high definition video adapter cable, compliant with the DP1.2 standard support HDCP Max data transmission speed can up to 5.4Gbps, support support 7.1 sound channel, The max Audio sample rate is 192KHZ.