For added reliability, E-Class SRA appliances offer active/active high availability (HA) with integrated load balancing and active/active stateful failover on the SRA EX9000, EX7000 and EX6000, eliminating the added cost of a third-party load balancer. In addition, with an optional Dell SonicWALL Aventail Spike License Pack, you can temporarily and cost-effectively increase your remote user count to the maximum capacity of those E-Class SRA appliances for disaster recovery or planned business cycle peaks, whether it is a few dozen or a few thousand additional users. Dell SonicWALL Aventail E-Class Secure Remote Access (SRA) delivers full-featured, easy-to-manage, clientless or thin-client “in-office” connectivity for up to 20,000 concurrent mobile enterprise users from a single appliance. E-Class SRA enhances productivity and business continuity with policy-enforced remote access to network resources from Windows®, Apple® Mac OS®, iOS, Linux®, and Google Android® devices. Built on the powerful Dell SonicWALL Aventail SSL VPN platform, E-Class SRA connects only authorized users to only accepted resources. When integrated with Dell SonicWALL Next-Generation Firewall as a Clean VPN™, the combined solution delivers centralized access control, malware protection, application control and content filtering over the internal wireless network.