US Patent 9668379 Heat spreader for a caged electrical connector assembly

A heat spreader includes a front heat spreader having a pluggable module interface configured to be in thermal communication with the pluggable module and a mating interface having first plates spaced apart by first gaps. The heat spreader includes a rear heat spreader having a mating interface including second plates spaced apart by second gaps. The front heat spreader is coupled to the rear heat spreader with the first plates interleaved with the second plates in thermal communication with each other. The first plates are received in the second gaps and the second plates being received in the first gaps. The heat is transferred from the front heat spreader to a heat transfer end of the rear heat spreader for cooling the pluggable module.