4 In 1 USB Type C Hub Multiport Adapter With Hi Speed USB 3.0 Ports Widely Compatible

As the name implies, a four-in-one docking station is a docking station that integrates four interfaces, usually including the following four interfaces:

1. HDMI interface:

Used to connect to monitors, TVs and other devices, and can output video and audio signals.
The supported video resolution and refresh rate depend on the specific model of the docking station.

2. USB-A interface:

Used to connect devices such as mice, keyboards, USB flash drives, mobile hard drives, etc.
Usually one or more USB-A interfaces are provided.

3. SD card slot or Micro SD card slot:

Used to read data from SD cards or Micro SD cards.
It is convenient to transfer photos, videos and other data from SD cards or Micro SD cards to computers or other devices.

4. Type-C interface:

Used to connect to other devices, such as mobile phones, tablets, etc.
Some four-in-one docking stations also provide PD fast charging function, which can quickly charge the connected devices.