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Chapter 3 Using Your Computer 33
USB Devices and Battery Power
You can use USB devices, such as joysticks and keyboards, that get power from the USB
connection instead of a separate power adapter with your iBook G4. However, these
types of USB devices can cause your iBook G4 battery to become depleted faster. If you
are using the device for an extended period, it is a good idea to connect the iBook G4
power adapter.
Using Multiple USB Devices at the Same Time
You can purchase a USB hub to connect multiple USB devices to your computer. The
USB hub connects to an open USB port on your computer and provides additional USB
ports (usually four or seven). Hi-Speed hubs can support USB 2.0 Hi-Speed devices as
well as USB 1.1 compatible devices. USB 1.1 hubs don’t allow Hi-Speed USB devices to
operate at their maximum data speed. Most USB hubs have a power adapter and
should be plugged into an outlet.
For More Information on USB
Additional information on USB is available in Mac OS Help. Choose Help > Mac Help in
the menu bar and search for “USB.” You can also find information on the Apple USB
website at www.apple.com/usb.
For information on USB devices available for your computer, check the Macintosh
Products Guide at www.apple.com/guide.
®
USB hub
LL2541Q7X.book Page 33 Wednesday, March 3, 2004 2:52 PM