The number of ports on a USB hub can vary by manufacturer and design, and there is no fixed standard. Common USB hubs range from 4 to 16 ports, and even some high-end or special-purpose hubs may offer more ports.
4-port USB hub: This is one of the most common small hubs, suitable for users who need a few extra USB ports.
7 ports or more: As the number of devices increases, users may choose a hub with more ports to meet their needs.
In addition, there are some special USB hub designs, such as portable USB hubs (usually with fewer ports for easy portability) or hubs with additional features (such as power adapters, Ethernet interfaces, video output, etc.), and the number of ports on these hubs will also vary depending on their design and functions.
It is important to note that although USB hubs can provide additional ports, they may also be limited by the bandwidth of the USB host controller (usually a computer or laptop). Therefore, performance bottlenecks may be encountered when using a large number of high-bandwidth devices (such as external hard drives, video capture devices, etc.). In this case, it may be more appropriate to choose a hub with higher bandwidth or support higher speed standards such as USB 3.0/3.1/3.2/4.0.
