A fluid ejection assembly includes a carrier including a substrate and an electrical circuit with the substrate having a first side and a second side opposite the first side and the electrical circuit being disposed on the second side of the substrate, a fluid ejection device mounted on the first side of the substrate, and at least one electrical connector electrically coupled to the electrical circuit and the fluid ejection device, wherein the electrical circuit includes a printed circuit board such that the printed circuit board and the substrate both have at least one fluid passage extending therethrough with the at least one fluid passage communicating with the first side of the substrate and the fluid ejection device.