Duomigo USB C Dual HDTV Adapter, 2 monitor splitter, USB C hub for laptops and monitors, silver
Duomigo USB C Dual HDTV Adapter, 2 Monitor Splitter, USB C Hub for Dual HDTV Docking Station for Laptops and Monitors
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Duomigo USB C Dual HDTV Adapter, 2 Monitor Splitter, USB C Hub for Dual HDTV Docking Station for Laptops and Monitors

156 ratings

Key item features

  • Versatile Display Modes: Supports dual external monitors for movies and games, offering Mirror and Extend modes for Mac (SST only) and both SST/MST for Windows, while Android supports mirror mode.
  • Effortless Connectivity: Features a plug-and-play design, requiring no external power or drivers, but necessitates a laptop or PC with Thunderbolt 3 or DisplayPort Alt Mode.
  • Rapid Power Delivery: Provides high-speed pass-through charging up to 87W, efficiently powering most USB-C laptops, tablets, and cell phones.
  • Blazing Data Transfer: Achieves USB 3.0 SuperSpeed data transfer rates of up to 5Gbps, enabling quick transfer of files, HD movies, and songs.
  • Broad Device Compatibility: Compatible with a wide range of Thunderbolt 3 devices, including various MacBook Pro/Air, Dell XPS, Lenovo Yoga, Microsoft Surface, and HP models.
  • High-Resolution Output: Supports dual HDTV output at 4K@30Hz, with backward compatibility for 2K and 1080p resolutions.
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Specs

Transfer rate, 5 GbpsNumber of ports, 4USB ports, 2Usb version, 3Height, 2 inInput/output quantity, 2

About this item

Product details

Dual Monitor Adapter

This USB-C to Dual HDTV adapter connects a computer,laptop or smartphone with a USB Type-C or Thunderbolt 3/4 port to one or two monitors with HDTV input.

Dual HDTV support 4k@30Hz, backwards compatible with 2K and 1080p resolution.

Supports SST on Windows, MacOS, Support Multi-Stream (MST) on windows.

1. How to set Dual display on MacBook?

"Setting" → "Display" → click the "mirror display" box to switch to Extend mode → then you can drag a window of website/movie to the rightest side of your desktop screen until it disappears on your desktop screen and shows up on the external monitor screen.

( Important Note: On Mac devices, CAN NOT extend two different screen, ONLY Mirror Screens due to Mac OS limitation)

2. How to connect Extend Mode for Windows OS?

Right-click desktop→ select Intel display Settings → pop-up Settings screen select display→ select multi-screen display→ expand the desktop

(If the display 3 is not displayed, please to manually select the display→click to apply to confirm can set OK)

3. If one the display does not display, How to do?

Right-click desktop > Graphics Settings > Select One or More Active Displays.

Friendly tips：

Not Support Apple devices to output two different split screens, including MacBook Air / Pro, iMac, etc.

A → B + C

Extend Mode 1 :

Laptop shows "A" + 1 extension display shows “B” + 1 extension display shows "C" is available.

For Windows

A → B + B

Extend Mode 2 :

Laptop shows "A" + 2 extension displays show “B” is available

For Windows / Mac OS

A → A + A

Mirror Mode:

Laptop shows "A" + 2 extension displays show "A" is available

For Windows / Mac OS / Mobile phone

  • 4-in-1 Dual HDTV Adapter：This USB-C to Dual HDTV Adapter supports devices with a USB Type-C (Thunderbolt 3) port, allowing connection to two external monitors for enjoying movies and games with your family on an ultra HD big screen. Note: On Mac devices, it supports both Mirror Mode and Extend Mode, but only SST is supported due to Mac OS limitations; MacBook with M1/M2 chip can only extend to one monitor. Windows OS supports both SST and MST mode, while Android systems only support mirror mode.
  • Plug and Play：No external power supply or driver is required—simply plug and play. Note: Not compatible with all USB-C port laptops; ensure your laptop or PC supports Thunderbolt 3 or DisplayPort mode (DP ALT mode).
  • Fast PD Charging：This HDTV hub for dual monitors provides high-speed pass-through charging up to 87W, making it ideal for charging most USB-C ports on laptops, tablets, and cell phones. High-speed charging is safe and efficient, saving you charging time and allowing for more gaming fun.
  • USB 3.0 High-Speed Data Transmission：Enjoy full USB 3.0 SuperSpeed data transfer up to 5Gbps, which is 10 times faster than USB 2.0. Transfer files, HD movies, and songs to your USB-C devices in seconds.
  • Wide Compatibility：This 2 HDTV USB-C adapter is an ideal adapter compatible with all Thunderbolt 3 devices, including MacBook Pro 2020/2019, MacBook Air 2019-2020, Dell XPS13/15, Lenovo Yoga 720/910/920/930, Microsoft Surface Book 2/Surface Go/Surface Laptop 3, Dell Latitude 13 7000/Latitude 13 E7370, HP Spectre Folio (13t-ak000cto)/HP Spectre x360 13t/HP Spectre 360 Laptop/HP EliteBook 840 G5 series/2018 HP Elite 800 G4/HP 13-af001TU/HP Zbook 17 G4, and more.
info:
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Specifications

Transfer rate

5 Gbps

Number of ports

4

USB ports

2

Usb version

3

Warranty

Warranty information

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4.5 out of 5 stars
stars
156 ratings113 reviews
How item rating is calculated
  1. 5 stars83% (130)
  2. 4 stars4% (6)
  3. 3 stars3% (5)
  4. 2 stars2% (3)
  5. 1 star8% (12)

Reviews summary

Pros

  • : Designed for simple connection and operation.
  • : The device enables multi-monitor use and speeds processing.
  • : The product delivers quality at a low cost.
  • : The connection delivers high-speed, real-time visuals.
  • : The dock provides instant, stable multi-device links.
  • : It uses sturdy materials and shows solid workmanship.
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Showing 1-3 of 113 reviews

May 5, 2026
Reviewer name: Steve
Sold byDuomigo Official StoreDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Thunderbolt was a game changer

Absolutely awesome. I had a bunch of issues with my HDMI, but this thing connects through thunderbolt. Plugged it in and both additional monitors lit up. Perfect.

Helpful?2HXFPICYVNYM9563813131
Dec 27, 2025
Reviewer name: Natasha
Sold byDuomigo Official StoreDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good quality

Works great, I bought my daughter one too.

Helpful?2HXFPICYVNYM9563813131
Dec 5, 2025
Reviewer name: Zhi
Sold byDuomigo Official StoreDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

plug and play easy

easy to use and the brand looks good

Helpful?2HXFPICYVNYM9563813131
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