Supports the Cisco 1841 router starting with Cisco IOS Software Release 12.3T• Helps enable end-to-end solutions with support for latest Cisco IOS Software-based QoS, bandwidth management, and security featuresHelps enable connectivity speeds up to 100BASE-T Ethernet technology without the need for cards and modules• Allows segmentation of the LANProvides 64 MB of Flash and 256 MB of synchronous dynamic RAM (SDRAM) memory to support deployment of concurrent services• Offers wide variety of LAN and WAN options; network interfaces are field-upgradable to accommodate future technologies• Provides many types of slots to add connectivity and services in the future on an "integrate-as-you-grow" basis• Supports more than 30 modules and interface cards, including existing WAN (WIC) and multiflex (VWIC) interface cards (for data support only on the Cisco 1841 router) and advanced integration modules (AIMs)