Cable assembly modules detachably mounted upon corresponding circuit pads

An electrical assembly comprising:

• a retainer defining an internal space and a bottom face adapted to be mounted to a printed circuit board having corresponding pads thereon wherein the bottom face forms an opening to allow the internal space to downwardly communicate with the pads of the printed circuit board;
• two sets of cable modules commonly located within the internal space and spaced from each other in a front-to-back direction, each set of cable modules including an elongated unitary housing enclosing a plurality of units along a transverse direction perpendicular to the front-to-back direction, each unit including a mating member equipped with the signal contacts while the unitary housing being equipped with grounding contacts, both said signal contacts and said grounding contacts having rear/upper connecting portions mechanically and electrically connected to corresponding cables, and front/lower mating portions exposed around the bottom face of the retainer and adapted to be mated with the corresponding pads.