Quick Summary
The StarTech.com USB-C to Dual HDMI Adapter MST Hub lets a Windows laptop drive two HDMI displays from one USB-C connection. It supports dual 4K 60Hz output, HDR, 2ch HDMI audio and USB power, with an extra-long built-in cable for added reach.
It is aimed at multi-monitor setups where the connected device and system support the required display output. The adapter is Windows only and is not compatible with macOS.
Who It Is Best For
This adapter suits buyers who want to add two HDMI monitors to a Windows laptop or similar USB-C system with the needed display support. It is also relevant for users who want a longer built-in cable to reduce strain at the connection point.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | StarTech.com. |
| Model | MST14CD122HD. |
| Product type | USB-C to Dual HDMI Adapter / MST Hub / Splitter for multi-monitor use. |
| Display output | Drives up to two HDMI displays. |
| Resolution support | Up to dual 4K 60Hz, depending on the connected host and graphics support. |
| Video features | Supports HDR and 2ch HDMI audio. |
| Power | USB powered. |
| Compatibility | Windows only; not compatible with macOS. |
| Built-in cable | 1 ft (30 cm) built-in cable for extended reach. |
| Additional compatibility notes | Listed as TB3, TB4 and USB4 compatible. |
Why Buyers Choose It
- Dual HDMI output allows two displays from one USB-C connection when the host supports the required mode.
- Dual 4K 60Hz support gives a clear specification to compare against monitor requirements.
- The 1 ft built-in cable can reduce strain on the port and connector area.
- The Windows Layout Utility is included for restoring window positions when reconnecting.
How It Works
Connect the adapter to a compatible USB-C host, then attach two HDMI displays. It uses the connected system’s graphics capabilities, and the text states that no drivers or software are needed.
The unit works with integrated or discrete GPU capabilities, and the supported output depends on the connected PC and graphics configuration.
Real World Use
The extra-long built-in cable is positioned for use with devices such as Surface Pro 7 and up, HP Elite x2 devices and laptops on riser stands. It is also described as useful for travel use in office, home office and shared workspace settings.
What To Know Before You Buy
Check that your Windows device supports the required display output, especially if you want dual 4K 60Hz. The adapter is not compatible with macOS, and the supported number of displays depends on your GPU and system configuration.
Confirm that the built-in 1 ft cable suits your setup and that your monitors use HDMI connections.
Common Buyer Questions
Can it run two monitors at once?
Yes, it is designed to drive up to two HDMI displays from one USB-C connection.
Does it work with Mac?
No, it is Windows only and not compatible with macOS.
Does it need drivers?
No drivers or software are needed.
What cable length is built in?
The built-in cable is 1 ft (30 cm).
Final Buying View
If you need a Windows USB-C adapter for two HDMI monitors, this MST hub gives a clear dual 4K 60Hz specification and a longer built-in cable. Confirm your device’s display support and HDMI monitor setup before ordering.





