Sony PCG-GR300K - Manual (Page 80)

To connect a USB device
Note:
The following steps describe the procedure for connecting a USB mouse to your notebook.
Refer to the manual that came with your USB device for specific installation instructions.
 Locate the USB device identified by the symbol. Plug one end of the USB cable into this port and the other end
into the USB device.
Connecting USB device to USB port
You can use an optional Sony USB mouse PCGA-UMS1 series (not supplied) with this notebook. Since the USB mouse
software driver is preinstalled in the notebook, you simply plug the USB mouse into the USB port to use it. One USB port
supports one USB device.
Note:
See the manual that came with your USB device for more information on its installation and use.
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