will this work with one 3440x1440 monitor and one 2560x1440 monitor? and will i be able to do over 60hz? they both do 100hz+

I'm fairly certain that you'd be pushing the limits of DisplayPort 1.2. Look at the total bandwidth being used of two monitors and if it exceeds roughly 24gbps, then the adapter won't handle it

I have my eyefinity 3 monitor setup and want to add a forth, can I use this adapter, and is it active?

Note that previous answers were from 2015. Current AMD Radeon driver software (post-Castalyst) does not support MST, and NVidia has an article on their site explicitly stating their drivers do not support MST either. MST will still work in mirrored mode when in the BIOS and on Windows boot logo, because despite AMD and NVidia not supporting MST in their drivers, they DO still build the hardware to handle all of DisplayPort 1.4's feature set.

What hz does this have with 2560x1440 monitors?

I have a 4 monitor setup, 2 of which go through the device. One at 3840x2160@30Hz, the other 1920x1080@60 Hz.

Why is this not using the whole screen. Why is there about 3 inches of my screen not being used.

We do apologize for any inconvenience. We would like to look into this with you. Please feel free to contact us at 1-800-265-1844. Our Technical Advisors are available 24 hours a day, 5 days a week to provide support. Atha, StarTech.com Support

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StarTech.com 3-Port DisplayPort 1.2 Splitter, DisplayPort to 3x DP Multi-Monitor Adapter, Dual 4K 30Hz and 1080p 60Hz Computer MST Hub, Windows Only (MSTDP123DP)

StarTech.com 3-Port DisplayPort 1.2 Splitter, DisplayPort to 3x DP Multi-Monitor Adapter, Dual 4K 30Hz and 1080p 60Hz Computer MST Hub, Windows Only (MSTDP123DP)

Product ID: 258398258

Details

Colour
Black
Compatible devices
PC
Connector type
DisplayPort
Item dimensions L x W x H
38.6 x 7.9 x 2
Specific uses for product
personal

📈Boosts productivity

🔄Extended/Duplicate modes

🖥️3x DisplayPort outputs

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Description

🚀 Elevate Your Workspace with Triple Display Magic!

RESOURCE EFFICIENT - Maximize your GPU performance while minimizing system strain.
STUNNING RESOLUTIONS - Experience dual 4K at 30Hz and 1080p at 60Hz for crystal-clear visuals.
TRIPLE DISPLAY POWER - Seamlessly connect up to 3 monitors for an immersive workspace.
COMPATIBILITY CHAMPION - Works flawlessly with major brands like HP, Dell, and Lenovo.
PLUG AND PLAY SIMPLICITY - Driverless setup means you can get to work faster without the hassle.

The StarTech.com 3-Port DisplayPort 1.2 Splitter is a powerful MST hub designed for Windows users, enabling seamless connection of up to three monitors with stunning resolutions of 2x 4K at 30Hz and 1x 1080p at 60Hz. Its driverless setup and compatibility with leading brands make it an essential tool for enhancing productivity in any professional environment.

Specifications

ASIN	B00JLRBB8I
Best Sellers Rank	#48,530 in Computers ( See Top 100 in Computers ) #1,181 in USB Flash Drives
Brand	StarTech
Built-In Media	Bosch Roller Plate L-BOXX Roller
Color	Black
Compatible Devices	PC
Connector Type	DisplayPort
Current Rating	1.2 Amps
Customer Reviews	3.8 3.8 out of 5 stars (384)
External Testing Certification	RoHS, CE, FCC
Finish	Matte
Global Trade Identification Number	00027242881310, 00065030851886, 00650308518860, 00724627116912, 00724627256427, 00821594795246, 04058829180973, 05054484751373, 05054533751378, 07426101374377, 07426800529542
Input Voltage	20 Volts
Item Dimensions	38.6 x 7.9 x 2 centimeters
Item Part Number	USM64GXW
Item Type Name	StarTech.com 3-Port Multi-Monitor Adapter - DisplayPort 1.2 MST Hub - Dual 4K 30Hz & 1x1080p - Extended Mode Video Splitter Only on Windows Computers - DP to 3x DP Monitors (MSTDP123DP)
Item Weight	0.22 Pounds
Manufacturer	StarTech.com
Mfr Part Number	MSTDP123DP
Model Number	MSTDP123DP
Number of Items	1
Number of Ports	3
Package Quantity	1
Power Plug Type	No Plug
Specific Uses For Product	personal
UPC	065030851886 027242881310
Unit Count	1 Count
Warranty Type	Limited

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HK$1264

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

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