DELL 350-11002 computer case part Rack

Though hidden from view in an actively running system, the midplane is the focal point for all connectivity within the M1000e modular system. The midplane is a large printed circuit board providing power distribution, fabric connectivity, and system management infrastructure. Additionally it allows airflow paths for the front-to-back cooling system through ventilation holes. As is requisite for fault-tolerant systems, the M1000e midplane is completely passive, with no hidden stacking midplanes or interposers with active components. I/O fabrics and system management are fully redundant from each hot-pluggable item. The system management Ethernet fabric is fully redundant when two CMCs are installed, with two point-to-point connections from each server module.