If you've got an older model notebook chances are it doesn't have built-in wireless LAN. Here's your solution! This Dynex DX-WGNBC Wireless G CardBus PC card is 802.11g compliant with a data transfer rate of up to 54 Mbps. It operates on the 2.4 GHz frequency band and offers security with 128-bit WEP and 64-bit WPA encryption. Connect your notebook to a wireless network with this Dynex DX-WGNBC Wireless G CardBus PC card!