The 3G wireless HWIC is a multiband, multiservice WAN card. Its primary application is WAN connectivity as a backup datalink for critical data applications and as a primary WAN connection. It supports the Cisco 1800 series, the Cisco 2800 series and the Cisco 3800 series integrated service routers (Cisco ISRs). The 3G wireless WAN HWIC houses one cellular modem for connection to a wireless WAN.HWIC-3G-CDMA-S is the Cisco part number for which the interface card is configured.To maximize the performance of your Cisco hardware, Cisco strongly recommends Cisco SMARTnet Support. SMARTnet provides you with technical support, access to essential information, and advanced hardware replacement.