The Motorola RFS4000 offers multiple features that ensure reliability and survivability of branch networking services in virtually any situation. The RFS4000 protects against access point and mesh node failure with SMART RF, a feature that keeps users on-Net with automatic optimization and healing. Motorola's patent pending clustering mechanism protects against wireless switch failure and offers Active/Active or Active/Standby controller redundancy options. In the event of a WAN outage, a redundant 3G ExpressCard guarantees Internet services by providing WAN backhaul options. With the Integrated Dual Radio Dual band form factor, the RFS4000 is the only Services Controller in the Industry that offers concurrent access in the 2.4 and 5 GHz bands, with mesh capabilities in a multi-cell environment.