StarTech.com 2-Port Multi Monitor Adapter
Bottom line: The StarTech.com 2-Port Multi Monitor Adapter: Drives two DP monitors from a single Mini DisplayPort 1.2 port; main trade-off: not compatible with macOS, so Mac Mini DP ports won't extend displays.
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Pros & Cons
Pros
- ✓ Drives two DP monitors from a single Mini DisplayPort 1.2 port
- ✓ Supports two 3440x1440 ultrawides at 60Hz, per the listing
- ✓ Driverless setup on Windows, no software install required
- ✓ MST uses the host GPU for uncompressed video with minimal overhead
- ✓ Extended or mirrored modes suit office desks and digital signage
Cons
- ✗ Not compatible with macOS, so Mac Mini DP ports won't extend displays
- ✗ 4K is capped at 30Hz, too choppy for gaming or fast motion
- ✗ Host must support DP 1.2 / HBR2 / MST or the hub won't work
- ✗ No HDMI or DVI outputs; non-DP monitors need extra adapters
Manufacturer description
The StarTech.com MSTMDP122DP turns a single Mini DisplayPort output into two DisplayPort outputs. You can run two monitors from one laptop or graphics card port, in either extended or duplicate mode. It uses MST (Multi-Stream Transport), so your existing GPU sends uncompressed video to each screen. It does not add a separate graphics processor. Resolution support covers most desk setups. You get two 4K UHD displays at 30Hz, two 1080p panels at 60Hz, or two 3440x1440 ultrawides at 60Hz. That makes it a good fit for spreadsheets, coding, trading screens and digital signage that mirrors one…
SpecPicks Verdict
SpecPicks scored StarTech.com 2-Port Multi Monitor Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the display & crt accessories category. Compare with similarly-priced alternatives in the display & crt accessories category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for display & crt accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does the StarTech MSTMDP122DP work with a MacBook or Mac Mini DisplayPort?
No. StarTech.com states this hub works with Windows only and is not compatible with macOS. macOS does not support MST extended desktops, so a Mac can't drive two independent screens through it.
Can I run two 4K monitors at 60Hz with this hub?
No. Two 4K UHD displays are limited to 30Hz. For 60Hz on both screens, the listing supports up to 1080p or two 3440x1440 ultrawide monitors.
Will it work with my laptop or graphics card?
Your Mini DisplayPort output must support DP 1.2, HBR2 and MST or later. The listing names compatible systems from HP, Dell and Lenovo, plus AMD, Nvidia and Intel graphics cards. Check your system's specs to confirm MST support.
Do I need to install drivers?
No. On Windows the hub is driverless. It uses MST on your existing video card, so you connect it and set up the displays in Windows display settings.
Can I mirror the same image on both monitors instead of extending?
Yes. The hub supports both extended and duplicate modes. Mirroring suits uses like digital signage, where each display shows the same content.
Key Features
- MULTI MONITOR ADAPTER FOR WINDOWS: Mini DisplayPort to Dual DisplayPort MST hub drives up to two DP displays in extended or duplicate mode using a Mini DP port on Windows desktop PCs or laptops | Not compatible with macOS
- DISPLAY RESOLUTION: Dual monitor mDP to DP MST hub supports resolutions up to 4K 30Hz (UHD) or 1080p 60Hz on both monitors, or can support two ultrawide displays up to 3440x1440 60Hz
- COMPATIBILITY: 2-Port Mini DP to DisplayPort MST video splitter works with laptops, computers or desktop graphics cards | Requires host system with DP 1.2/HBR2/MST or later from HP, Dell & Lenovo and AMD, Nvidia & Intel video cards
- INCREASE PRODUCTIVITY: Increase productivity by extending your desktop at your workstation in the office/home office | MST technology uses your GPU/video card performance to deliver uncompressed video and use minimal system resources
- EASY TO USE: Multiple monitor adapter natively supports 2x DP screens; Works with Windows only and provides an easy driverless setup
Full Specifications
| Brand | StarTech.com |
|---|---|
| Color | Black |
| Finish | Matte |
| Unit Count | 1 Count |
| EASY TO USE | Multiple monitor adapter natively supports 2x DP screens; Works with Windows only and provides an easy driverless setup |
| Model Number | MSTMDP122DP |
| Compatibility | Mac |
| Warranty Type | Standard Warranty |
| Built-In Media | Video splitter - 2 ports |
| Connector Type | DisplayPort, Mini DisplayPort |
| Item Type Name | Signal Splitter |
| Item Dimensions | 15.2 x 2.3 x 0.6 inches |
| Mfr Part Number | MSTMDP122DP |
| Number of Items | 1 |
| Number of Ports | 2 |
| Power Plug Type | Type A - 2 pin (North American) |
| Compatible Devices | PC |
| Warranty Description | 3 Years |
| Item dimensions L x W x H | 15.2 x 2.3 x 0.6 inches |
| Specific Uses For Product | personal |
| Full listing title | StarTech.com 2-Port Multi Monitor Adapter - Mini DisplayPort to 2x DisplayPort MST Hub - Dual 4K 30Hz - Video Splitter for Extended Desktop Mode on Windows PCs Only - mDP 1.2 to 2x DP (MSTMDP122DP) |
Ready to buy?
StarTech.com 2-Port Multi Monitor Adapter - Mini DisplayPort to 2x DisplayPort MST Hub - Dual 4K 30Hz - Video Splitter for Extended Desktop Mode on Windows PCs Only - mDP 1.2 to 2x DP (MSTMDP122DP) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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