StarTech.com 3-Port USB-C Multi-Monitor Adapter: Triple 4K60Hz HDMI MST Hub for Windows

The StarTech.com 3-Port USB-C Multi-Monitor Adapter is the essential tool for anyone who needs expansive, high-fidelity visuals without sacrificing portability. This Type-C to 3x HDMI MST Hub turns a single USB-C connection into a powerful triple-monitor setup, delivering three independent 4K60Hz displays from one compact dongle. It’s built for professionals who demand maximum screen real estate for design, development, data analysis, trading, or creative workflows, all while preserving a clean, desk-friendly workspace. Whether you’re working from a laptop, a desktop with USB-C, or a mobile workstation, this adapter provides a reliable bridge between your computer and three HDMI displays, enabling you to extend, mirror, or configure your displays to suit your exact workflow. The device is optimized for Windows environments, leveraging DisplayPort MST technology to split the video stream across three HDMI outputs, so you can reference multiple documents side by side, compare datasets, or storyboard complex projects across multiple screens. Its slim, portable design makes it easy to carry between offices, clients, or coffee shops, turning any compatible setup into a robust multi-monitor workstation in minutes. For teams collaborating in real time or professionals presenting across three screens, this adapter ensures crisp 4K visuals, accurate color, and smooth performance without the need for a bulky docking station. In short, the StarTech 3-Port USB-C Multi-Monitor Adapter delivers triple-monitor capability, seamless Windows compatibility, and the flexibility you need to boost productivity and streamline complex tasks with confidence.

• Triple 4K60Hz HDMI outputs: Each HDMI port is capable of driving a 4K60 signal, enabling three independent displays from a single USB-C connection. This MST-enabled configuration lets you create expansive workspaces for advanced design, data analysis, programming, or financial dashboards without compromising image quality or color accuracy.
• USB-C host connection with DisplayPort Alt Mode: The adapter plugs directly into a USB-C port that supports DisplayPort Alt Mode, converting a single USB-C connection into three HDMI outputs. This makes it a portable, cable-light solution for laptops, ultrabooks, and desktops that rely on USB-C for video output.
• Windows-optimized MST technology: Built for Windows environments, the hub uses DisplayPort Multi-Stream Transport to deliver three independent displays, enabling true extended desktops and streamlined multitasking across multiple windows, apps, and reference materials.
• Compact, portable design for on-the-go productivity: The lightweight, dongle-style form factor fits easily into a laptop bag or backpack, reducing desk clutter while still delivering a sophisticated triple-monitor setup. Its unobtrusive footprint is ideal for travel, remote work, and flexible workstations.
• Flexible display configuration and simple setup: Use three displays for expansive dashboards, a primary screen with two references, or a true three-wide creative workspace. Windows Display Settings makes it straightforward to arrange, extend, and fine-tune the output to match your physical monitor layout, orientation, and workflow preferences.

Technical Details of StarTech.com 3-Port USB-C Multi-Monitor Adapter

• Video outputs: 3 x HDMI (HDMI 2.0) supporting up to 4K60Hz on each display
• Input: USB-C host connection with DisplayPort Alt Mode
• Technology: DisplayPort MST hub to split the video stream into three independent HDMI displays
• Supported operating systems: Windows 10/11 (and compatible Windows devices with USB-C DisplayPort Alt Mode)
• Maximum per-display resolution: 4K60Hz (3840 x 2160) per HDMI output
• Color and audio passthrough: HDMI carries both video and audio to each display

How to install StarTech.com 3-Port USB-C Multi-Monitor Adapter

• Step 1: Connect the USB-C end of the adapter to a USB-C port on your Windows laptop or PC that supports DisplayPort Alt Mode.
• Step 2: Attach three HDMI cables from the adapter to your three HDMI displays, ensuring each monitor is set to its corresponding HDMI input.
• Step 3: Power on all displays and verify that they are detected by Windows. If a display isn’t recognized, reseat cables and check that the HDMI inputs are correct.
• Step 4: On Windows, open Settings > System > Display, then choose Extend desktop and arrange the displays to reflect their physical positions on your desk. Apply changes and confirm overall desktop layout.
• Step 5: Set resolution and refresh rate for each display. If your hardware supports it, configure 4K at 60 Hz for each monitor to achieve the sharpest visuals and smooth motion in video, games, or design software.

Frequently asked questions

• Q: Does this adapter work with macOS or Linux?

  A: The product is designed for Windows environments. macOS and Linux support can vary by hardware and driver availability, so for macOS or Linux setups you should check compatibility notes from StarTech or consider models explicitly documented for those platforms.

• Q: Can I run three 4K60 displays at the same time?

  A: Yes, provided your host computer supports DisplayPort Alt Mode and DisplayPort MST, and your HDMI displays are capable of 4K60. Actual performance depends on the graphics card, CPU, and the bandwidth available on your USB-C port.

• Q: Do I need an external power supply for this MST hub?

  A: The adapter is designed to be bus-powered from the USB-C port in most typical laptop configurations. An external power adapter is generally not required unless you are operating in a setup with unusually high bandwidth demand or non-standard host hardware.

• Q: What if Windows doesn’t detect all three displays?

  A: Start by ensuring DisplayPort Alt Mode is enabled on the host, update Windows display drivers, and verify that each HDMI cable and monitor input is correct. Reconnect the adapter, then reopen Display Settings to detect all displays and arrange them accordingly.

• Q: How should I arrange the displays for optimal workflow?

  A: Arrange the monitors in Windows Display Settings to match their physical layout on your desk (left to right or top to bottom). Consider placing the primary workspace on the main screen while using the side monitors for reference material, tool palettes, or secondary dashboards to maximize efficiency and reduce window juggling.