Extreme 4900 Ethernet Routing Switches - Refurbished Used: NetworkTigers offers superior, examined, seller refurbished and used Ethernet Routing Switches. All refurbished and used Extreme - Refurbished, Used, New 4900 Series Ethernet Routing Switches we sell are fully evaluated by experienced techs and returned to Extreme's original detailed standards. We can overnight these powerful, capable, Extreme 4900 Series Ethernet Routing Switches to your site.