What types of devices are compatible with the USB Type-C charging port?

The USB Type-C charging port is designed to supply power for Type-C equipped laptops or smartphones that support DP Alt Mode or Thunderbolt 3.

What is the maximum resolution supported by the HDMI port of this hub?

The HDMI port supports a maximum resolution of 4K x 2K at 30Hz.

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Nippon Labs USB 3.1 Type-C to USB 3.0 Type-A / HDMI / Type-C Hub, Supports 4K x 2K @ 30Hz, White Charging Adapter, 30UC-CHMU3C

HDMI Port: Connect a Type-C equipped computer or smartphone to a monitor, TV or projector with HDMI input at resolution up to 4K x 2K @ 30Hz.
USB 3.0 Type-A Port: The USB 3.0 Type-A port allows you to connect external peripherals, such as portable hard drives, keyboard or mouse with a high-speed data transmission rate up to 5Gbps.
USB Type-C Charging Port: This USB-C port is designed to supply power for your Type-C equipped laptop or smartphone.
USB-C connected devices must support DP Alt Mode or Thunderbolt 3 connector.
USB Type-C features a smaller and reversible connector that makes it easier to plug in.
Backward compatible with USB 2.0.