Let the Linksys USB VPN and Firewall Adapter protect your PC and your communications wherever you go. This easy-to-pack, lightweight, network interface with advanced safety and security features connects you to the Internet through any broadband connection (cable, DSL, or your hotel's fast Internet service), and protects your PC from most known Internet attacks with a powerful Stateful Packet Inspection firewall. You can also optionally block Java, Active X, and Cookies -- known points of entry for hackers. The Adapter connects to virtually any PC through the USB port, and requires no external power supply. Once you're connected, you can establish a Virtual Private Network tunnel from your PC to a corporate network using the popular IPSec VPN standard, and your transmitted data will be protected by government-spec DES or Triple-DES encryption. It's also a perfect traveling companion to the Linksys Firewall Router (BEFSX41) or VPN Router (BEFVP41) on your home or small office network. You can securely connect to your home resources to retrieve files, or check your local email. Once you're connected over VPN, it's just like being attached to the local network. With the Linksys USB VPN and Firewall Adapter protecting your PC and communications, you'll have one less thing to worry about when you're traveling.