
Monoprice 121974 DisplayPort 1.2 to HDMI MST Hub
Expand Your Display Capabilities with Multi-Stream TransportThe Monoprice 2-Port DisplayPort 1.2 to HDMI MST Hub allows you to connect multiple HDMI displays to a single DisplayPort output. This hub supports various display modes, including duplicate and extended desktop, making it ideal for digi...
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Expand Your Display Capabilities with Multi-Stream Transport
The Monoprice 2-Port DisplayPort 1.2 to HDMI MST Hub allows you to connect multiple HDMI displays to a single DisplayPort output. This hub supports various display modes, including duplicate and extended desktop, making it ideal for digital signage, video walls, and more.
Specifications Overview
- Brand: Monoprice
- Model: 121974
- Type: 2-Port DisplayPort 1.2 to HDMI MST Hub
- Input: DisplayPort 1.2
- Outputs: 2 x HDMI
- Maximum Resolution (Single Display): 4K@60Hz
- Maximum Resolution (Dual Display): 4K@30Hz per display
Key Features
Connector type: 4-Pin Mini DIN
This 2-Port DisplayPort 1.2 to HDMI Multi-Stream Transport (MST) Hub enables two different display modes on up to two monitors connected to a single DisplayPort output
You can connect a single display at resolutions up to 4K@60Hz to mirror your computer's desktop. Alternatively, you can connect two monitors and the hub will extend the image to span the two displays at resolutions up to 4K@30Hz for each display
An MST Hub enables three different display modes on up to four monitors connected to a single Mini DisplayPort output.
This hub is ideal for digital signage and large video displays in schools, churches, conference rooms, at trade shows, and in retail outlets.
*Note that macOS does not support MST on NVIDIA or Intel GPUs.
Specifications
Pros & Cons
👍 Pros
- Enables two distinct display modes, mirroring or extending, on up to two monitors from a single DisplayPort output.
- Supports high resolutions, allowing a single display up to 4K@60Hz or two displays up to 4K@30Hz each.
- Ideal for various professional and public display applications like digital signage, conference rooms, and retail.
- Transforms a single DisplayPort 1.2 output into a multi-monitor solution, enhancing productivity and display options.
- The hub facilitates extending images across two displays, creating a more expansive viewing area for tasks.
👎 Cons
- This MST hub is specifically designed for DisplayPort 1.2 input, limiting compatibility with older DisplayPort versions or other video outputs.
- macOS does not support MST on NVIDIA or Intel GPUs, which significantly limits its functionality for Mac users.
- The hub only supports up to two monitors in extended mode at 4K@30Hz; users requiring higher refresh rates or more monitors may find this limiting.
- The connector type listed as "4-Pin Mini DIN" appears to be an error in the features and contradicts the "DisplayPort 1.2 to HDMI MST Hub" product title, causing confusion.
- Specific details about power requirements or the inclusion of a power adapter are not provided.