Based on 20 years of innovation, Cisco 1800 Series Integrated Services Router is optimized for data-access applications, providing small-to-medium sized businesses and small branch offices with the complete functionality and flexibility to deliver secure Internet and Intranet access.The integrated services routing architecture of the Cisco 1800 product family builds on the Cisco 1700 Series Multiservice Access Routers by offering more than a fivefold performance increase, dramatically increased performance with high-speed WAN-interface-card (HWIC) slots that support new HWICs such as the 4 port EtherSwitch HWIC. A wide range of connectivity options is provided with AIM, HWIC, and VWIC modularity, as well as investment protection through the support of more than 30 existing 1700 Series WAN interface cards (WIC/VIC/VWIC data mode only).This Cisco 1841 security bundle comes with WIC-1DSU-T1-V2, IOS Advanced Security, 64 MB Flash/256 MB DRAM.