StarTech 3-Port Multi Monitor Adapter - USB-C to HDMI Video - MST Hub
StarTech 3-Port Multi Monitor Adapter - USB-C to HDMI Video - MST Hub
Description
Dual 4K 30Hz or Triple 1080p 60Hz HDMI monitors | DP 1.2/HBR2/MST Hub | Works w/ Thunderbolt 3
Video splitter increases productivity by adding extended/mirrored screens
Multi Stream Transport hub works w/Dell XPS Precision Latitude/Lenovo ThinkPad X1 Carbon Extreme/Surface Laptop 3 Book 3 Pro 7/HP ProBook EliteBook Spectre ZBook
No Drivers Windows/Linux | 1' cable
Delivery
Australia
Standard Shipping 4-7 business days: AU $8.95*
Express Shipping 1-3 business days: AU $15*
International Shipping
New Zealand 9-12 business days: AU$21*
*During peak promotional periods, please allow additional time for your order dispatch.
Learn more
Returns
While we can’t offer a refund or replacement if you simply change your mind, we’re here to help if your item has a problem under Australian Consumer Law. You may be entitled to a refund or exchange if an item has a major problem. This is when the item:
- has a problem that would have stopped someone from buying the item if they had known about it
- is unsafe
- is significantly different from the sample or description
- doesn't do what we said it would, or what you asked for and can't be easily fixed
If the problem is not major, we will repair the item within a reasonable time. If it can’t be repaired in a reasonable time, we’ll offer a suitable resolution such as a refund or replacement. Please keep your proof of purchase — e.g. your receipt.
Read more
In stock with supplier
Ships within 8 - 27 days
BANK TRANSFER (EFT)
In stock with supplier
Ships within 8 - 27 days
Accepted payment methods
Description
Dual 4K 30Hz or Triple 1080p 60Hz HDMI monitors | DP 1.2/HBR2/MST Hub | Works w/ Thunderbolt 3
Video splitter increases productivity by adding extended/mirrored screens
Multi Stream Transport hub works w/Dell XPS Precision Latitude/Lenovo ThinkPad X1 Carbon Extreme/Surface Laptop 3 Book 3 Pro 7/HP ProBook EliteBook Spectre ZBook
No Drivers Windows/Linux | 1' cable
Delivery
Australia
Standard Shipping 4-7 business days: AU $8.95*
Express Shipping 1-3 business days: AU $15*
International Shipping
New Zealand 9-12 business days: AU$21*
*During peak promotional periods, please allow additional time for your order dispatch.
Learn more
Returns
While we can’t offer a refund or replacement if you simply change your mind, we’re here to help if your item has a problem under Australian Consumer Law. You may be entitled to a refund or exchange if an item has a major problem. This is when the item:
- has a problem that would have stopped someone from buying the item if they had known about it
- is unsafe
- is significantly different from the sample or description
- doesn't do what we said it would, or what you asked for and can't be easily fixed
If the problem is not major, we will repair the item within a reasonable time. If it can’t be repaired in a reasonable time, we’ll offer a suitable resolution such as a refund or replacement. Please keep your proof of purchase — e.g. your receipt.
Read more
This MST (Multi-Stream Transport) hub lets you connect three HDMI monitors to your USB-C™ computer. MST ensures hassle-free setup by natively working on any Windows® device that supports DP Alt Mode over USB Type-C™, such as models of Dell™ Precision™ and Dell XPS™ laptops and ASUS® ROG GL752.
Increase your productivity with multiple monitors
The newest generation of laptops are more portable than ever. Unfortunately, this means you’re left with fewer video outputs and a small integrated screen. This MST hub solves these problems by letting you connect three displays to a single USB-C port on your computer, which makes multitasking much easier.
Using the MST hub, you can extend your desktop onto additional monitors and stream independent content to each display. This makes it easier to multitask and increase your productivity, which is perfect for creating an easy-to-dock hot-desk solution with a wireless keyboard and mouse peripheral set.
You can also mirror the same image onto multiple displays for remote viewing applications such as digital signage.

Astonishing picture quality that won’t drain your system resources
MST technology uses your existing video card to minimize the use of system resources while delivering Ultra HD 4K resolutions. 4K is supported by the latest A/V devices and delivers four times the resolution of 1080p. Plus, because the MST hub can output high-definition 1080p, the MST hub is perfect for high-resolution applications such as graphic design and medical imaging.

The MSTCDP123HD is backed by a 2-year StarTech.com warranty and free lifetime technical support.
Note: MST shares 21.6Gbps across all attached displays. Higher resolutions can restrict the available bandwidth with the remaining ports, please see our guidelines below for determining an ideal resolution for your setup. Certain graphics adapters have limited MST support and will only output to three displays in total. If more than three monitors are attached, the fourth will be disabled.
Average resolution bandwidth allocation:
1920x1080 (High-definition 1080p) @60Hz - 22%
1920x1200 @60Hz - 30%
2560x1440 @60Hz - 35%
2560x1600 @60Hz - 38%
3840 x 2160 (Ultra HD 4K) @30Hz - 38%
Note: Exceeding 100% will reduce functionality.
Examples of supported resolution configurations:
Screen 1 Resolution | Screen 2 Resolution | Screen 3 Resolution | Total % of Bandwidth |
|---|---|---|---|
| 1920x1200 @60Hz (30%) | 1920x1200 @60Hz (30%) | 1920x1200 @60Hz (30%) | 90% |
| 2560x1440 @60Hz (35%) | 2560x1440 @60Hz (35%) | 1920x1200 @60Hz (30%) | 100% |
| 2560x1600 @60Hz (38%) | 2560x1600 @60Hz (38%) | 1920x1080 @60Hz (22%) | 98% |
| 3840x2160 @30Hz (38%) | 2560x1600 @60Hz (38%) | 1920x1080 @60Hz (22%) | 98% |
| 3840x2160 @30Hz (38%) | 3840x2160 @30Hz (38%) | 1920x1080 @60Hz (22%) | 98% |
Examples of unsupported resolution configurations:
Screen 1 Resolution | Screen 2 Resolution | Screen 3 Resolution | Total % of Bandwidth |
|---|---|---|---|
| 2560x1600 @60Hz (38%) | 2560x1600 @60Hz (38%) | 1920x1200 @60Hz (30%) | 106% |
| 3840x2160 @30Hz (38%) | 2560x1600 @60Hz (38%) | 1920x1200 @60Hz (30%) | 106% |
| 3840x2160 @30Hz (38%) | 2560x1600 @60Hz (38%) | 2560x1440 @60Hz (35%) | 111% |
| 3840x2160 @30Hz (38%) | 3840x2160 @30Hz (38%) | 3840x2160 @30Hz (38%) | 114% |
| Connector(s) | |
| Connector A | USB-C (24 pin) DisplayPort Alt Mode Male Input |
| Connector B | HDMI (19 pin) Female Output |
| Environmental | |
| Humidity | 50-90% |
| Operating Temperature | 0°C to 45°C (32°F to 113°F) |
| Storage Temperature | -20°C to 70°C (-4°F to 158°F) |
| Hardware | |
| Audio | Yes |
| AV Output | HDMI |
| Chipset ID | MegaChips - STDP4320 VIA/VLI - VL100 |
| Ports | 3 |
| Packaging Information | |
| Shipping (Package) Weight | 0.3 kg [0.7 lb] |
| Performance | |
| Maximum Digital Resolutions | 3840 x 2160 @30hz |
| Supported Resolutions | 1024x768 1280x720 (High-definition 720p) 1920x1080 (High-definition 1080p) 1920x1200 2560x1440 2560x1600 3840 x 2160 (Ultra HD 4K) @30hz |
| Wide Screen Supported | Yes |
| Physical Characteristics | |
| Accent Color | Black |
| Cable Length | 300 mm [11.8 in] |
| Color | Black |
| Enclosure Type | Plastic |
| Product Height | 15 mm [0.6 in] |
| Product Length | 105 mm [4.1 in] |
| Product Weight | 118 g [4.2 oz] |
| Product Width | 65 mm [2.6 in] |
| Software | |
| OS Compatibility | Windows 10 (32/64) Windows 8/8.1 (32/64) Windows 7(32/64) |
| What's in the Box | |
| Included in Package | MST hub |
Multi Stream Transport hub works w/Dell XPS Precision Latitude/Lenovo ThinkPad X1 Carbon Extreme/Surface Laptop 3 Book 3 Pro 7/HP ProBook EliteBook Spectre ZBook
No Drivers Windows/Linux | 1 cable
USB-C adapter for multiple monitors works w/USB Type-C DP Alt-mode Windows PCs to connect up to 3 independent displays
Video splitter increases productivity by adding extended/mirrored screens