HP A8P79-60002 ICB is an interconnect board listed as an internal assembly for the HP LaserJet M521dn Pro MFP. It is a specific printer service part, identified by its full part number.
The catalogue distinguishes the board from A8P79-60101, the separate power cable between the ICB and formatter. This helps identify the board as the requested component rather than its associated cable.
The listing confirms the part reference and assembly category; it does not specify further board features or package contents.