Dell Thunderbolt Dock WD22TB4 User Guide

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Video connectors for multiple display setup

This topic provides details of the various video output configurations supported by your docking station.

Important information

The Dell WD22TB4 dock supports multiple video output configurations with 2, 3 and 4 external displays.

NOTE:The HDMI and MFDP USB Type-C ports on the back of the WD22TB4 are muxed. Only one of these two ports can be used at a time. If the HDMI port is in use, the USB Type-C port will still retain USB functionality.

NOTE:The WD22TB4 supports non-Thunderbolt devices, but the connected devices will not support Thunderbolt features. Non-Thunderbolt devices connected to the two Thunderbolt ports at the back of the WD22TB4 supports USB 3.0 speeds.

NOTE:When connected to a Thunderbolt compatible device, the two ports support 40 Gbps speeds.

Dual-display setup

dual-display setup

Table 1. Dual-display connectionThe following table provides details of the port combinations supported on the WD22TB4 for connecting two displays:
Number of displays	Connector one	Connector two
Two (4K @60Hz)	DisplayPort 1.4	HDMI 2.0/MFDP Type-C
	DisplayPort 1.4	DisplayPort 1.4
	HDMI/MFDP Type-C	Thunderbolt Type-C port
	Thunderbolt Type-C ports	Thunderbolt Type-C port

Triple-display setup

Table 2. Triple-display connectionThe following table provides details of the port combinations supported on the WD22TB4 for connecting three displays:
Number of displays	Connector one	Connector two	Connector three
Three (4K @60Hz)	DisplayPort 1.4	DisplayPort 1.4	HDMI 2.0
Three (4K @60Hz)	DisplayPort 1.4	DisplayPort 1.4	MFDP Type-C

Quad-display setup

Table 3. Quad-display connectionThe following table provides details of the port combinations supported on the WD22TB4 for connecting four displays:
Number of displays	Connector one	Connector two	Connector three	Connector four
Four (4K @60Hz)	DisplayPort 1.4	DisplayPort 1.4	HDMI 2.0	Thunderbolt Type-C
Four (4K @60Hz)	DisplayPort 1.4	DisplayPort 1.4	MFDP Type-C	Thunderbolt Type-C