Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	StarTech.com
	Product Type	Adapter
	Standards/Approvals	CE
	Video Connection Type	HDMI
	Maximum Resolution	3840 x 2160 pixel
	USB Specification	USB Type C
	Thunderbolt Connector Type	Thunderbolt 3
	Supported Number of Displays	2

	Select all
	Brand StarTech.com
	Product Type Adapter
	Standards/Approvals CE
	Video Connection Type HDMI
	Maximum Resolution 3840 x 2160 pixel
	USB Specification USB Type C
	Thunderbolt Connector Type Thunderbolt 3
	Supported Number of Displays 2

Datasheet - MST14CD122HD

COO (Country of Origin):: CN

StarTech Adapter, 3840 x 2160 Maximum Resolution, Thunderbolt 3 Connector Type - MST14CD122HD

This adapter converts a USB Type-C DP Alt Mode host signal into two independent HDMI outputs for Windows systems. It uses Multi-Stream Transport to split a single DisplayPort 1.4 stream into two separate HDMI feeds, enabling extended or mirrored desktop configurations and supporting HDR for enhanced contrast and colour. The device is bus-powered and connects via a built-in 30cm cable for flexible placement.

Features and Benefits:

• Drives two 3840 x 2160 60Hz displays for increased desktop area
• Supports HDR to improve contrast and colour fidelity
• USB powered operation removes the need for an external PSU
• Compatible with Thunderbolt 3/Thunderbolt 4 and USB4 hosts
• Includes 2-channel HDMI audio support for multimedia playback

Applications

• Used for multi-tasking on dual-monitor Windows workstations
• Suitable for video editing across two UHD displays
• Ideal for presenting extended screens to clients or teams
• Used with laptops to expand desktop and productivity setups

Which host devices natively support splitting two displays?

Windows systems that provide DP Alt Mode over USB-C and support MST can drive two independent outputs.

Is external power required for operation?

No, the unit is bus-powered and draws sufficient power from the host USB-C port.

What audio formats are passed to connected displays?

The hub carries 2-channel HDMI audio to compatible HDMI monitors or TVs.

Which graphics configurations allow dual 4K60 output?

Discrete GPUs or Intel 12th‑gen+ processors with DP1.4 and DSC support enable two 4K60 displays.

StarTech.com to HDMI Adapter USB Type C 2 Supported Display(s) - 3840 x 2160 pixel

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