Isr4331/k9
cisco 4331 integrated services router delivers 100 mbps to 300 mbps aggregate throughput and offers one enhanced service-module (sm-x) slot, which supports for both single- and double-wide service modules provides flexibility in deployment options.
Cisco 4000 router isr4331 (2ge,2nim,1sm,4g flash,4g dram,ip base)