Web security appliance.

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Combining traditional URL filtering, reputation filtering and malware filtering, IronPort S-Series Web security gateway appliances secure and control Web traffic risks facing enterprise networks, including security, resource and compliance risks, both horizontally (at the application layer) and vertically (up the protocol stack). The single-appliance solution features multiple processors running IronPort AsyncOS, which offers Web reputation filters and multiple antimalware scanning engines running in parallel to eliminate performance degradation and end-user latency. The $660 model is suited for large enterprises or data centers and supports up to 30,000 users; the $360 suits up to 10,000 users; and the $160 is designed for up to 1,000 users.--IronPort