The HP A2W79-67902 cartridge interface PC board assembly is a replacement service part for specified HP Color LaserJet Enterprise printers. It is identified as a cartridge interface PCA, intended for use within the printer’s cartridge interface system.
The part is listed for the HP Color LaserJet Enterprise Flow MFP M880z+ NFC/Wireless Direct, the M855dn, and the M855x+ NFC/Wireless Direct. This makes it a model-specific component for servicing these printer models.