The 8-port Cisco® Gigabit Ethernet LAN Switch Network Interface Module (NIMs) NIM-ES2-8-P can reduce your company's total cost of ownership (TCO) by integrating Gigabit Ethernet switch ports within Cisco 4000 Series Integrated Services Routers (ISRs). These low-density Gigabit Ethernet switches offer small to medium-sized businesses and enterprise branch offices a combination of switching and routing integrated into a single device.