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STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)
STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)
STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)
STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)
STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)
STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)
STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)
STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T (MSTDP123DP)

STARTECH StarTech.com 3-Port Multi Monitor Adapter, DisplayPort 1.2 MST Hub, Dual 4K 30Hz & 1x 1080p, Video Splitter for Extended Desktop Mode on Windows PCs Only, DP to 3x DP Monitors MST Hub - Multi Stream T


FI vendors Expected in stock 4.5.2026
SKU: MSTDP123DP
Ports:
0
Display Ports:
3
HDMI Ports:
0
Network:
0

Use this adapter to connect three independent displays to a single DP 1.2 port

This MST hub lets you connect three monitors to your DisplayPort™ (DP) 1.2 equipped Windows® laptop or desktop.

Increase productivity with multiple screens

The newest generations of computers are more portable than ever, which often means that you’re left with fewer video outputs and smaller integrated screens. This MST hub solves both of these problems by letting you connect three additional displays to your computer, which makes multitasking much easier.

Connect to any display

With the MST hub, you can use DisplayPort video adapters and cable adapters that enable you to connect HDMI, VGA or DVI displays. This ensures your MST hub will be compatible with virtually any television, monitor or projector. This MST hub is VESA and DisplayPort certified to support DP 1.2 enabled systems, for seamless integration with your existing video equipment.

Configure your displays for any environment

Using the MST hub, you can extend your desktop onto additional monitors and stream independent content to each display giving you the freedom to multitask and increase your productivity. You can also mirror the same image onto multiple displays for remote viewing applications such as digital signage.

Enjoy amazing video quality, without draining system resources

MST technology uses your existing video card to minimize the use of system resources while delivering Ultra HD 4K resolutions. This unprecedented performance makes MST perfect for high-resolution applications such as graphic design, gaming and medical imaging.

Note: When using a DisplayPort 1.1 video card the MSTDP123DP will act as splitter, automatically mirroring your video source across all displays. Resolution limitations apply.

The MSTDP123DP supports plug-and-play installation for a hassle-free setup, and is backed by a StarTech.com 3-year warranty and free lifetime technical support.

Note: MST shares 21.6 Gbps across all attached displays. Higher resolutions can restrict the available bandwidth with the remaining ports, please see our guideline 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%

The StarTech.com Advantage

Ports & interfaces
Video ports quantity
3
Video port type
DisplayPort
Video out
3x DisplayPort
Features
Product colour
Black
Housing material
Plastic
Cable length
0.19 m
Plug and Play
Yes
Certification
ROHS
Windows operating systems supported
Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64
Power
AC input voltage
110 - 240 V
Input current
0.5 A
Output voltage
5 V
Output current
3 A
Power consumption (typical)
15 W
Weight & dimensions
Width
78 mm
Depth
386 mm
Height
20 mm
Weight
99 g
Packaging data
Package width
229 mm
Package depth
155 mm
Package height
55 mm
Package weight
409 g
Packaging content
Manual
Yes
AC adapter included
Yes
Included power plug types
AU, EU, NA, UK
Operational conditions
Operating temperature (T-T)
0 - 45 °C
Storage temperature (T-T)
-20 - 70 °C
Technical details
Compliance certificates
RoHS
Logistics data
Harmonized System (HS) code
85176990
Master (outer) case width
340 mm
Master (outer) case length
500 mm
Master (outer) case height
230 mm
Products per master (outer) case
10 pc(s)
COMMUNICATION / CABLES
COMMUNICATION / HUBS/SPLITTERS
Please note that the product image is for illustration purposes only and the actual product may differ in appearance from the product image (e.g. computers might not include a display, even if there is one in the product image). If you have any questions, please contact us before making an order.

Technical information is provided by a third party. We do not guarantee or assume responsibility for the accuracy or reliability of the information.