PowerPad15S
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5.3. Scalability
If you wish to synchronise more devices, multiple hubs can be connected to allow more devices to be
managed from a single host computer simultaneously.
To daisy-chain multiple hubs, each hub needs to be connected to mains power
individually, and the first hub in the chain should be connected to the local computer through the
hub’s “host port”. The host port of the next hub in the daisy-chain is then connected to any of the
first hub's downstream USB ports. More hubs are added in the same way.
Using this daisy-chain approach, a maximum of four additional hubs can be linked, allowing a total of
71 devices to be synced from a single host computer. Alternatively, a star topology can be used, which
allows up to 85 devices to be synced from a single computer. In this arrangement, the first hub is
attached in the same way, connecting the hubs host port to the computer’s USB port. After that, five
additional hubs can be attached to the downstream USB ports of the first hubs by their host ports as
shown below.