The Lenovo Flex System SI4091 10Gb System Interconnect Module enables simplified, low-cost integration of Flex System into your networking infrastructure. The SI4091 requires no management for most data center environments, which eliminates the need to configure each networking device or individual ports, thus reducing the number of management points. It provides a low latency, loop-free interface that does not rely upon spanning tree protocols, which removes one of the greatest deployment and management complexities of a traditional switch. The SI4091 offers administrators a simplified deployment experience while maintaining the performance of intra-chassis connectivity.