Only if your laptop's built-in USB-C port is fully functional and supports data transfer, video display, and PD charging, can you use all the functions of this hub, such as Thunderbolt 3/4, USB4, Type-C 3.1/3.2 Gen 2 with Power Delivery and DisplayPort.

1. Please check which functions are supported by your laptop's built-in USB-C port.

2. Check your HDMI cable (HDMI to HDMI).

3. Plug in your laptop's power adapter to the USB-C PD port before connecting external hard drives or multiple devices to the hub.

There are 2 USB-C ports on our hub. The first USB-C port is a PD fast charging port, but the second USB-C port only supports data transfer and cannot be used for charging or HDMI output. If you still can't charge, please let us know your laptop model.

1. Dual HDMI displays simultaneously (final resolution depends on the bandwidth of the laptop's graphics card, monitor specifications, and video cable).

2. For DP1.4, HDMI 1 supports up to 4K@30Hz, HDMI 2 supports up to 2K@60Hz.

3. For DP1.2, HDMI 1 supports up to 4K@30Hz, HDMI 2 supports up to 1080P@60Hz.

The hub temperature will heat up when it works.0’c -50 C is the normal and reasonable range. it's a normal situation for al hubs, not a quality problem,

please feel relieved about usage.