The Cisco 3660 Dual 10/100 E Multiservice Modular Router is the ideal connectivity solution for large branch-office networks. It provides robust data, voice, video, and hybrid dial access integration with flexible, high-performance modularity. The router features (2) integrated 10/100BaseTX autosensing ports (RJ-45), (2) PCMCIA slots, and (6) hot-swappable module slots for optional LAN/WAN connectivity and power redundancy. The 3660 offers support for over 70 different interface modules including modules from Cisco Series 1600, 1700, 2600, and 3600 routers. In addition to its flexible LAN/WAN connectivity, the 3660 features a 225MHz RISC QED RM5271 processor, 32MB of SDRAM operating memory upgradable to 256MB, and 8MB of Flash memory upgradable to 64MB. It operates with Cisco IOS software and offers full support for such software features as voice signaling, WAN optimization, Quality of Service (QoS), dial access, and full security and encryption.