Placa PCMCIA Wi-Fi D-Link Air Plus Xtreme DWL-G650+ 2.4ghz Fully compatible with the 802.11g standard to provide a wireless data rate of up to 54Mbps Backwards compatible with the 802.11b standard to provide a wireless data rate of up to 11Mbps WPA* (Wi Fi Protected Access) authorizes and identifies users based on a secret key that changes automatically at a regular interval, for example: 802.1x* Authentication in conjunction with the radius server verifies the identity of would be clients TKIP (Temporal Key Integrity Protocol), in conjunction with a RADIUS server, changes the temporal key every 10,000 packets, ensuring greater security Pre Shared Key mode means that the home user, without a RADIUS server, will obtain a new security key every time the he or she connects to the network, vastly improving the safety of communications on the network.