Receptacle module and connector assembly

A connector assembly is provided. The connector assembly includes a receptacle module and a pluggable module. The receptacle module includes a cage, a receptacle connector, a biasing spring, and a locking member. The pluggable module is moved from a front end to a back end, so as to be aligned and mated with the receptacle module. The biasing spring is configured to apply a spring load toward the front end of the cage. Accordingly, the mating between the receptacle module and the pluggable module may be accomplished through alignment in the following manner: the pluggable module pushes the receptacle connector toward the back end to compress the biasing spring, so that the receptacle connector is moved toward the back end to the locking member to be mated with the pluggable module.