Trendnet TEW-421PC is a wireless PC Card that enables you to connect to 802.11g and 802.11b networks. With this card, you can share the Internet, files, and other resources wirelessly and enjoy a fast and reliable connection for gaming, video streaming, and web browsing. It supports various security protocols to protect your data and privacy, and it's compatible with Windows 98SE/ME/2000/XP operating systems.