Can't extend two different screens on macOS

ABC/ABA/AAB (Extend) Display Mode is not supported on macOS, This hub only supports SST mode under macOS and can only extend 1 monitor.

Product does not work as intended？

Before purchasing, make ensure your computer's USB-C port supports DisplayPort Alt Mode, as this is required for the adapter to transmit video signals to external monitors

Can't extend two different screens ?

macOS only supports mirror mode (AAA, ABB mode), It does not support Extended mode（ABC, ABA, AAB Mode).

Why product is not compatible with device ?

Ensure your laptop's USB-C support displayport ALT mode , Kindly note that a single display can support up to 4K@60hz, but in MST mode, dual displays can only support up to 4K@30hz.

1. Adjust the laptop's output resolution to a lower setting or verify the cable connection.

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USB C to Dual HDMI Adapter 4K@60hz, Type C to HDMI Splitter Extended Display for MacBook/MacBook Pro Air Dell XPS13/15, Samsung Galaxy S9/S9+ [MST Mode (Extended displays) Only for Win OS]

USB C to Dual HDMI Adapter 4K@60hz, Type C to HDMI Splitter Extended Display for MacBook/MacBook Pro Air Dell XPS13/15, Samsung Galaxy S9/S9+ [MST Mode (Extended displays) Only for Win OS]

Product ID: 566871209

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Details

Brand
KOZYC
Color
silver
Hardware Interface
HDMI USB Type
Special Feature
Play Plug
Compatible Devices
Laptops

⚡Plug & Play, no power needed

🔌Dual HDMI output

🖥️4K@60Hz single display

Description

🚀 Double your display, double your impact.

STUNNING 4 K VISUALS - Experience ultra-crisp 4K resolution at 60Hz on one display, or smooth 4K@30Hz on dual screens for vibrant presentations.
FUTURE PROOF RELIABLE - Crafted with Thunderbolt 3 and DP 1.4 alt mode support, backed by a 2-year warranty and lifetime tech support.
EFFORTLESS COMPATIBILITY - Works flawlessly with MacBook, Dell XPS, Samsung Galaxy, and more—supporting Windows, MacOS, Linux, and Android.
ZERO HASSLE INSTALLATION - No drivers, no external power—just plug in and elevate your productivity instantly.
SEAMLESS DUAL DISPLAY SETUP - Expand your workspace with two HDMI screens from a single USB-C port—perfect for multitasking pros.

The KOZYC USB C to Dual HDMI Adapter effortlessly connects your USB-C device to two HDMI monitors, delivering up to 4K@60Hz on a single screen or 4K@30Hz on dual displays. Compatible across major OS platforms and devices with Thunderbolt 3 or DP Alt Mode, it offers plug-and-play convenience without extra power or drivers. Ideal for professionals seeking to maximize screen real estate and productivity with crisp visuals and broad device support.

Specifications

Brand	KOZYC
Item model number	K2AD12UH
Operating System	Mac OS 9, Windows 10, Windows 7
Item Weight	1.26 ounces
Product Dimensions	2.2 x 1.87 x 0.39 inches
Item Dimensions LxWxH	2.2 x 1.87 x 0.39 inches
Color	silver
Manufacturer	KOZYC
ASIN	B0CG5W614X
Date First Available	August 21, 2023

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