[Compatible Device] : The systems supported by this product are Windows 10 and above, Mac OS 10.15 and above. (Android and Linux not supported). Note: Support usb c devices with data, charging and video output over Type-C port (DP Alt Mode). Before purchase, please check or confirm with us. 12-month warranty and life-long technical support. [Extended/Mirror Mode]: Under Windows system and MacOS system, it supports extended mode (ABB and ABC) and mirror mode (AAA). The monitor can display the same image or different images. This adapter providing a variety of protection systems to prevent over-current, over-voltage, short-circuit, heating dissipation, can improve the performance of the operation. [Up to 4K@30HZ resolution]: The highest resolution can reach 4K@30HZ, plug and play with clear picture quality to meet daily needs. One of the ports is 1080P, and you need to install the driver "Udisplay" for first use. Doesn't support playback of HDCP-protected content on sites like Netflix, Hulu and YouTube. [Premium Materials & Unique Design] : This product uses nylon thread with braiding technology, which can be bent flexibly and is not easily damaged. Its lifespan is generally longer than that of plastic threads. The length of this product has also been lengthened, 1.96 ft line length meets the needs of more time. [Multi-Stream Transport] : The Multi-Stream Transport function of this dual monitor adapter mainly provides users of the Mac Os system with 3-screen differential display - 3 screens display different images (ABC mode). It is not limited to other product expansion functions and can only display at most with two screens.