SonicWALL Security Appliance Firewalls Refurbished Used: NetworkTigers offers quality, tested, seller refurbished, used, and new transferable SonicWALL Security Appliance Firewalls. NetworkTigers can overnight these powerful state-of-the-art transferable security devices to your location. All refurbished and used SonicWALL Security Appliance firewalls we sell are thoroughly examined by qualified technicians and returned to the SonicWALL's original secure standards.

SonicWall, originally a private company headquartered in Silicon Valley, and a Dell subsidiary from 2012 to 2016, sells a range of Internet Security Appliances or firewalls that assist network managers in managing network content and network security.