Finding, Installing, and Using a USB Hub
Because so many peripheral devices use the USB interface, you will probably run out of available USB ports before you run out of devices you want to attach to your Mac. That's where a USB hub comes in.
→ To learn more about the USB interface, see “USB,” p. 630.
Understanding USB Hubs
A USB hub expands the number of USB ports that are available on your Mac; USB hubs are one of the simpler devices you will use. USB ports offer the following features:
Number of ports The number of ports a USB hub offers determines the number of devices you can attach to it. Typical USB hubs offer four ports, but some offer more than that (such as seven ports).
CAUTION
Sometimes the number of ports offered by a hub can be a ...
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