Microsoft Wireless-G Notebook Kit Intelligent software automatically detects your Internet service and modem settings for easy base station configuration Flexible support for 256-bit Wi-Fi Protected Access (WPA) and 128-bit Wired Equivalent Privacy (WEP) delivers strong wireless security Full compatibility with 802.11g and 802.11b Wi-Fi networks State-of-the-art hardware with one WAN and four LAN 10/100 auto-sensing and auto-crossover ports Compatible with Windows 98, 98 SE, Me, 2000 Professional, and XP