Mezzanine HCA cards
In HP Cluster Platform configurations, the HP ProLiant BL c-Class Server Blades are pre-configured with an InfiniBand Mezzanine HCA for HP c-Class BladeSystem. The HCA interconnects with the HP BladeSystem c-Class InfiniBand switch module installed in the rear of the enclosure. For more information on the mezzanine HCA card, locate the option documentation by entering the HP part number in the search field and searching the HP website.