1. The USB-C female port of this product is only for charging USB-C laptops whose USB-C port supports USB Power Delivery (PD) and does not support data transfer.
2. A 4K-capable display and HDMl cable are required to achieve 3840x2160 resolution.
3. USB C hub to VGA Adapter: HD and VGA not simultaneously, resolution up to 1920 * 1080 P. a perfect solution for entertainment and work.
4. Charging USB Type-C port: Charging: (Charge only for laptop)
5. For stable connection connect an adapter to the hub when using high-power devices.

Tips:
1 ways to help reduce the USB 3.0 radio frequency interference to the wireless connection of some laptops.
2 Connect the laptop to a 5 GHz Wi-Fi network.
3 Connect devices (eg mouse and keyboard) to USB 2.0 ports on the laptop
4 Connect the USB 3.0 hub to the laptop with a high-quality 1-foot or longer USB 3.0 extension cable; keep USB 3.0 devices away from the host computer.
5 Use high-quality shielded USB 3.0 devices / cables / connectors.