Connectrix is the family name for EMC Corporation's brand of storage area network (SAN) switches (also called "directors" for larger models). EMC does not manufacture any of these devices, instead they rebadge several other brands. In many cases the EMC version of a switch will have customized EMC firmware, which will improve larger SAN design and/or compatibility between multi-vendor products. These customizations are usually created by the original switch vendor to EMC's requirements.