(Regarding this situation, this article proposes a LAN access adapter with multiple universal serial bus (usb) interfaces. It integrates the functions of multiple Ethernet cards and hubs in the traditional sense, so that multiple computers can use their respective usb interfaces to connect to a downlink interface of the upper-level network device, and internally uses a more powerful function than the hub. The switch controller controls the data flow of each interface to ensure reliable office work)
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