The HP MPCA FFC Kit A7W93-67011 is a service part for printer electronics. It is identified in HP PageWide Pro 750 service information as the kit containing the FFC between the AC control module and the main PCA.
This flexible flat cable provides the connection between those assemblies. The kit is intended for servicing that connection when the relevant cable or connectors are damaged. The exact part number helps distinguish this kit from other printer service parts.