The FL-4330-PERF-K9 increases the performance of the Cisco ISR4331 router from a baseline of 100 Mbps to 300 Mbps. The document describes several models of the ISR4331 router that have throughput between 100-300 Mbps and include features such as security, voice, intelligent WAN, and service module slots. Contact information is provided for the Hong Kong and Hangzhou offices of HI-NETWORK.COM, an online retailer of networking equipment based in China.