In addition to the USB docking station, there is also something called a USB hub
A USB hub is a device that is used when your laptop or desktop has limited integrated ports, usually it can only extend the USB port. It gives you more ways to connect peripherals like mice and keyboards, as well as thumb drives and external hard drives.
The function of the docking station is more powerful, and it can expand other interfaces besides the USB interface. Like ports for connecting monitors via DisplayPort or HDMI cables, so when you need to work on your laptop, you can have a second (or third or fourth) screen for easier multitasking.
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