p The SonicWALL Network Security Appliance NSA 220 and NSA 220 Wireless N Series high performance Next Generation Firewalls offer branch offices and distributed enterprises in depth frontline security, application and user control, network productivity and optional 802.11 dual band wireless. The NSA 220 Series firewalls act as the first line of network defense against viruses, Trojans, key loggers and other application layer attacks, without compromising network performance. Management is simplified by consolidating many functions, including network security, remote access and wireless. p
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