The SonicWall NSa 3700 firewall is one of the best mid-range firewalls that offers superior performance with a simple management interface. The NSa 3700 firewalls are rated for 200-300 users, 5.5 Gbps firewall throughput, and 2.2 Gbps VPN throughput. Trust that your network security environment is protected with any of the SonicWall NSa 3700 licenses that include Total Secure Essential Edition, Total Secure Advanced Edition, Secure Upgrade Plus Essential Edition, or Secure Upgrade Plus Advanced Edition enhanced security features.