Cisco Isr 4431 ( Isr4431/k9 ), Aggregate Throughput 500Mbps to 1Gbps, WAN or LAN 10/100/1000 ports-4, RJ-45-based ports-4, SFP-based ports-4, AC input voltage 100 to 240 VAC autoranging, AC input frequency 47 to 63 Hz. Cisco 4431 Integrated Services Router, which supports 3 Network Interface Modules (NIM) slots, delivers 500 Mbps to 1 Gbps aggregate throughput. This router also supports two kinds of DDRM, data plane and control/services plane.