SonicWALL Optical Transceivers Refurbished Used: NetworkTigers offers superior, dependable, seller refurbished and used Transceivers. All refurbished and used SonicWALL Optical Transceivers we provide are comprehensively passed by network techs and returned to SonicWALL's original detailed standards. We can overnight these flexible, capable, SonicWALL Optical Transceivers to your office.