StarTech. com MST14CD123HD USB-C to 3x HDMI MST Hub - Triple 4K 60Hz Multi-Monitor Adapter - HDR - HDCP 2. 2 - Windows Only
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This adapter utilizes Multi-Stream Transport (MST) technology to daisy-chain displays from a single USB-C connection, supporting resolutions up to 3840 x 2160 across three HDMI 2.0 outputs. It requires a host device with USB-C DP 1.4 Alt Mode and DSC, such as Windows PCs with discrete GPUs or 12th Gen and newer Intel processors, to achieve triple 4K 60Hz output.
The active design ensures signal integrity over extended cable runs, while features like strain relief on the integrated cable enhance durability. It supports 2-channel HDMI audio alongside video, and compatibility with Thunderbolt 3, Thunderbolt 4, and USB4 hosts provides flexibility across modern hardware.
This section brings together practical product details such as Adapter Type, Connector Type on First End, Connector on First End Details, Color Family, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
This MST hub stands out by delivering triple 4K display support from a single USB-C port without requiring external power or software drivers. Its integration of DSC technology allows for high-resolution multi-monitor setups on compatible Windows laptops, maximizing productivity for tasks like financial modeling, software development, and multimedia editing.
Simplified Multi-Display Management
Includes a Windows Layout Utility that remembers application window positions when reconnecting, streamlining workspace restoration for IT teams and frequent travelers.
- Reduces setup time after disconnections
- Ideal for hot-desking or shared workspaces
Broad Hardware Compatibility
Works with integrated and discrete GPUs from Intel, AMD, and NVIDIA, supporting high-performance graphics with minimal CPU overhead for efficient resource utilization.
- Optimized for business laptops and 2-in-1 devices
- Reduces system load during multi-tasking
Deployment / Use Cases
This adapter is ideal for extending desktop real estate in office, home office, or shared workspace environments. Its compact design and integrated cable make it suitable for on-the-go professionals using devices like Microsoft Surface Pro 7/8 or HP Elite series laptops, where portability and quick setup are prioritized.
In corporate IT deployments, it serves as a reliable tool for help-desk teams to configure multi-monitor workstations without driver installations. The hub is also effective in digital signage setups requiring multiple 4K displays from a single source, though users should verify GPU capabilities for their specific configuration needs.
Physical Profile
The hub features a space gray plastic housing measuring 4.10" x 1.70" x 0.60" (104.14 mm x 43.18 mm x 15.24 mm), with a lightweight design at 2.50 oz for easy portability. The 1-foot integrated USB-C cable offers flexibility in placement, reducing stress on laptop ports during use in riser stands or docking setups.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 0.60" (15.24 mm), 1.70" (43.18 mm), 2.50 oz (70.87 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 1.70" (43.18 mm)
- Height
- 0.60" (15.24 mm)
- Weight
- 2.50 oz (70.87 g)
- Length
- 4.10" (104.14 mm)
Highlights
- Drives three independent 4K displays at 60 Hz each from a single USB-C port.
- Utilizes Display Stream Compression (DSC) and Multi-Stream Transport (MST) for high-bandwidth video.
- Supports HDR content and HDCP 2.2 for protected media playback.
- Plug-and-play setup with no drivers required for Windows systems.
- Includes a 1-foot integrated USB-C cable with strain relief for durability.
- Compatible with Thunderbolt 3, Thunderbolt 4, and USB4 host devices.
- Windows Layout Utility restores application window positions automatically.
- 3-year limited warranty and RoHS/REACH/WEEE environmental compliance.
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | MST14CD123HD |
| Brand Name | StarTech.com |
| Product Name | HDMI/USB-C A/V Adapter |
| Packaged Quantity | 1 |
| Product Type | A/V Adapter |
| Technical Information | |
| Adapter Type | HDMI/USB-C |
| Connector Type on First End | USB Type C - Male |
| Connector on First End Details | 1 x USB Type C - Male |
| Connector Type on Second End | HDMI 2.0 Digital Audio/Video - Female |
| Connector on Second End Details | 3 x HDMI 2.0 Digital Audio/Video - Female |
| Maximum Resolution Supported | 3840 x 2160 |
| Features | Active,Display Stream Compression (DSC),HDR Support,Multi-Stream Transport (MST) Support,Plug and Play,Strain Relief,HDCP 2.2 |
| Physical Characteristics | |
| Color Family | Gray |
| Product Color | Space Gray |
| Product Material | Plastic |
| Height | 0.60" (15.24 mm) |
| Width | 1.70" (43.18 mm) |
| Length | 4.10" (104.14 mm) |
| Weight (Approximate) | 2.50 oz (70.87 g) |
| Miscellaneous | |
| Country of Origin | China |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 3 Year |
User Manual
FAQ
What is the maximum resolution supported by this USB-C to HDMI adapter?
The StarTech.com MST14CD123HD supports a maximum resolution of 3840 x 2160 (4K) at 60 Hz per display. When connected to a compatible host, it can drive up to three displays simultaneously at this resolution using Display Stream Compression technology.
Is this adapter compatible with macOS or Apple devices?
No, this adapter is designed for Windows systems only and is not compatible with macOS or Apple devices. It requires a Windows PC with USB-C DP 1.4 Alt Mode and DSC support to function properly.
Does this hub require external power or software drivers?
No external power or software drivers are needed. The hub is USB-powered and operates as a plug-and-play device on Windows, making installation straightforward. It includes a Windows Layout Utility for restoring window positions, but no additional drivers are required for basic functionality.
What types of devices are compatible with this multi-monitor adapter?
This adapter is compatible with Windows laptops and desktops featuring USB-C ports with DisplayPort 1.4 Alt Mode and DSC support. This includes systems with discrete GPUs or 12th Gen and newer Intel processors. It also works with Thunderbolt 3, Thunderbolt 4, and USB4 hosts.
What is the length of the built-in USB-C cable?
The adapter includes a 1-foot (30 cm) integrated USB-C cable. This extended reach helps reduce strain on device ports, particularly useful for 2-in-1 devices or laptops on riser stands in office or travel setups.
Does this adapter support HDR and audio output?
Yes, it supports HDR (High Dynamic Range) content for enhanced visual quality and includes 2-channel HDMI audio pass-through. This allows for both video and audio transmission to connected displays, suitable for multimedia applications.
What resolution or display format is specified?
It features a display specification of 3840 x 2160, giving you clear visuals for work and media use.
What refresh rate or brightness details are available?
Display-oriented products are best judged through screen, connectivity, and installation specifications. Those facts help buyers confirm visual fit, mounting flexibility, and deployment suitability more clearly than generic summary text.