The Cisco 1841 security router is a compact, 1U rack‑mountable device designed for secure network operations. It includes a single VWIC2/1MFT port for high‑speed fiber connectivity and a single T1/E1 Multiflex port for traditional voice or data circuits. The combination of these interfaces provides versatile connectivity options for enterprise or service‑provider environments. Built on Cisco’s proven 1841 platform, the router offers robust security features and reliable performance in a space‑efficient chassis. Ideal for small to medium‑sized deployments that require both fiber and legacy T1/E1 support within a single rack unit.