Sony PCG-GRX510P - Manual (Page 87)

Expanding Your Notebook Capabilities
87
Wireless LAN PC Card
The Wireless LAN PC Card, which comes with the Wireless LAN Access Point,
can be purchased separately and is designed for building a wireless LAN
environment. The Wireless LAN PC Card can be used with or without the Access
Point. With the Access Point, you can build a wireless LAN between computers
that are equipped with the Wireless LAN PC Card and gain access to the Internet.
Without the Access Point, you can achieve direct communication (Peer to Peer
mode) between computers.
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For more information on Sony Wireless LAN, go to
http://www.sonystyle.com/vaio/wirelesslan.