System and Cable Requirements 

• Not all USB-C ports support the full functionality of the USB Type-C standard. Ensure that your host USB-C port supports USB Power Delivery 3.0 and DP alt mode.
• The adapter can connect to a host laptop's USB-C port that doesn't support USB Power Delivery 3.0. However, in this configuration if a power adapter is connected to the multifunction adapter, it will not pass power through to your host laptop.
• A 4K-capable display is required to achieve 3840 x 2160 resolution (4K is also known as 4K x 2K)
• A host laptop with an available USB-C port (to ensure full adapter functionality, the host USB-C port must support USB Power Delivery 3.0 and DP alt mode).
• Optional: USB-C power adapter (for example, your laptop's USB-C based power adapter).