USB C to Dual HDMI adapter for 2 Monitors
Adding more screens to your computer should not be limited to the lack of HDMI ports. Our Plugable Universal USB C to dual HDMI adapter serves as a workaround that adds two HDMI ports to your computer through a single USB C port. You can connect your computer or game console to a TV, monitor, or projector to enjoy the TV mode. Easily set up video mirroring or extended desktop across two displays. Multitasking on your USB-C computer is now easier. The Plugable splitter for dual monitors extended display is an affordable solution compared to a docking station.
Dual HDMI support 4k@60Hz, backwards compatible with 4K@30Hz, 2K and 1080p resolution.Supports SST on MacOS, Support Multi-Stream (MST) on windows.Compact and portable, it's the perfect companion for on-the-go professionals and entertainment enthusiasts alike, offering convenience and versatility wherever you go. Elevate your experience with our USB-C to Dual HDMI Adapter today.
Please Note: NOT for all USB-C port laptops, Make sure your laptop or PC supports ” Thunderbolt 3” ” Thunderbolt 4”or “displayport output mode（DP ALT mode）
What is USB-C DP ALT Mode?
DP Alt Mode allows USB-C ports to transfer dataideo via multiple interfaces, including the increasingly popular DisplayPort video interface. USB-C ports capable of transferring DisplayPort signals are either called USB-C DisplayPort or DP Alt Mode. They allow you to connect video sources (e.g. PCs, Blu-Ray players, etc.) and display devices (e.g. TVs, projectors, etc.) that support DisplayPort to each other via their USB-C ports to broadcast high-definition video.
But now not all USB-C ports feature DisplayPort Alt Mode functionality.
How do I know if my device supports DisplayPort over USB-C?
The best method to decipher whether your device supports DisplayPort over USB-C is to check either the product specs on the manufacturer’s official website or to check websites with in-depth product reviews and/or information. Within those sites you’ll be able to find detailed breakdowns of each port on the device.
Basically, Thunderbolt 3, Thunderbolt 4, and USB C 3.1 Gen 2 (or above) support video output. If you are not sure, you are welcome to ask us for a device compatibility check before purchase.
Support Dual 4K@60Hz Resolution
The USB C docking station dual monitor supports dual 4K@60Hz output for an exceptional visual experience during multitasking. Plug and play—no additional software needed.
Determining Your DisplayPort (DP) Version
The version of DP on your laptop, computer, or tablet directly determines the actual resolution when connecting to external monitors using the dual monitor adapter. There are three simple ways to find out which version of DP your device has.
1. Ask your device manufacturer or seller directly.
2. If you're using a Windows device, you can tell which version of DP you have by checking your CPU generation.
DP version 1.2 if your CPU is Intel generation 10 or earlier.DP version 1.4 if your CPU is Intel generation 11 or later.
Don't know how to find your CPU generation? Simply go to This PC (or My Computer) > Properties and look for the number (shown in bold and underlined below):
Processer: Intel(R) Core i7-8850H CPU @ 2.60GHz 2.59Ghz
3. If you're using a MacOS device, you can find your DP version from the list below:
DP 1.4:
Compatible with MacBook Pro (16-inch, 2019), MacBook Pro (15-inch, 2017 and later), MacBook Pro (13-inch, 4 Thunderbolt 3 ports, 2020), MacBook Air (2020), MacBook Air (13-inch, M1, 2020), MacBook Pro (13-inch, M1, 2020), MacBook Pro (14-inch, 2021), MacBook Pro (16-inch, 2021), iMac (Retina 5K, 27-inch, 2017 and later), iMac (Retina 4K, 21.5-inch, 2017 and later), and iMac Pro (2017 and later)
DP 1.2:
Compatible with MacBook Air (2018 and later), MacBook Pro (13-inch, 2016 and later), MacBook Pro (15-inch, 2016), iMac (non-Retina, 21.5‑inch, 2017), and Mac mini (2018)
Windows System-Multiple Display Mode-Mirror Mode & Extend Mode:
Mirror Mode (AAA Mode): Laptop shows same images with external two displays.
Extend Mode (ABB and ABC Mode): Laptop shows different images with external two displays.
How to extend monitor on Windows: When the adapter is connected to the laptop and connected to the display with an HDMI cable, you can use the shortcut key combination Win+P to select other modes such as expansion and copy, and support multiple expansion combinations such as ABC. In Windows Settings-System-Screen Settings, you can select the display order and resolution of the secondary screen through the settings, and you can change the refresh rate of the secondary screen in advanced display settings.
MacOS System -Mirror Mode & Extend Mode -Only SST Supported:
Mirror Mode (AAAMode): Laptop shows same images with external two displays.
Extend Mode (ABB Mode): Two external screen display same images but different with laptop.
Note: ON MacOS only SST mode (AAA and ABB mode) supported due to MacOS limitation.
How to extend monitor on Mac: When the adapter is connected to the laptop and connected to the display with an HDMI cable, you can change the resolution, refresh rate, mirroring and extension mode of the secondary screen in System Preferences-Display Settings, and support ABB’s extension mode and AAA’s copy mode.
Please Note：
To achieve the best 4K@60Hz resolution, please use a 4K monitor and an HDMI 2.0 cable.It is normal for the dual-display HDMI adapter to generate heat after extended use, the outer casing dissipates heat to protect the internal circuit board.On MacOS, only SST is supported, so it cannot extend to two different screens.
FAQ
Q1.If the screen flickering or going black?
A1. Insufficient Power Supply. (Some devices may have a weaker power supply capacity for the docking station, which can lead to insufficient power and screen flickering. Therefore, it is necessary to connect the charger for power supply when using it.)
A2. Check HDMI Port Connection. (Due to the nature of HDMI interfaces, they do not have locking nuts like DVI interfaces, nor do they have locking mechanisms like DP interfaces. Therefore, poor contact can easily lead to screen flickering.)
A3. HDMI Cable Quality: Avoid using HDMI cables longer than 5 meters; Avoid using HDMI to VGA and HDMI to DP cables. (Longer cable lengths can result in more significant signal attenuation, primarily due to impedance and insufficient shielding. Additionally, using other adapter cables can affect transmission power, which constitutes a secondary conversion and can greatly impact stability.)
A4. Display Compatibility Issues. (You can try replacing the display to see if the flickering issue persists, as some displays with weaker signal reception may exhibit flickering.)
Q2. What should you do if your laptop fails to recognize the HDMI display?
A1. Ensure that your laptop's USB C port supports DisplayPort/video output.
A2.Right-click desktop > Graphics Settings > Select One or More Active Displays.
A3. Check your HDMI cable and monitor. (Try connecting the monitor directly to the laptop to see if it works.)
