Dell Sonic WALL NSA 250M offers branch offices & distributed enterprises in-depth frontline security, application & user control, network productivity. The NSA 250M acts as the network defense against viruses, Trojans, key-loggers & other application layer attacks, without compromising network performance. The NSA 250M series can provide deployment flexibility & reduce acquisition & maintenance costs. The NSA 250M series provides anti-malware, intrusion prevention & web content filtering at branch offices without compromising performance at those locations.