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How to choose a USB hub?
There are currently two types of hubs on the market: USB2.0 hubs and USB3.0 hubs. USB2.0 and USB3.0 actually refer to the standard transmission protocols of USB.
There are currently two types of hubs on the market: USB2.0 hubs and USB3.0 hubs. USB2.0 and USB3.0 actually refer to the standard transmission protocols of USB.
Therefore, if the computer interface is USB3.0, it is best to choose a USB3.0 hub, otherwise the reading and writing speed will be greatly reduced when connecting hard drives, USB flash drives, etc. If the laptop's interface is USB2.0, then it makes no difference whether it is connected to a USB2.0 hub or a USB3.0 hub.
Another situation that you need to pay attention to when using a USB2.0 hub is that the load may be too high. The load capacity of the USB2.0 interface is only 500 mA. When the load of the hub's external peripherals exceeds the maximum output power, the system will encounter the "A USB device exceeds the power limit of its hub port" problem. Therefore, if you choose a USB2.0 hub, it is best to choose a PD interface, which can provide additional power for peripherals connected to the hub. The load capacity of the USB3.0 interface is 900 mA, so under normal circumstances there will be no problem of insufficient power supply.
Some people are confused whether a hub and a docking station are the same thing. In fact, although the functions of the two are similar, the differences are quite big. There is an independent chip processing inside the docking station, which has stronger expansion capabilities and higher stability. It can be used for display expansion, charging laptops, etc.; while the hub itself still relies on the south bridge chip of the computer for expansion and does not have a processing chip itself. , so it can only expand data transmission ports such as general USB interfaces and network ports, and the stability is not as good as that of the docking station.
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