A stacked electrical connector includes a front mating face, an insulative housing comprising and a plurality of contacts. The insulative housing has a first housing and a second housing arranged in an up-to-down direction. The first housing defines a plurality of inserting ports. The second housing defines a receiving space. The contacts include a plurality of first contacts and second contacts. The first contacts each has a first contact portion extending into the inserting port and a first soldering tail extending out of the insulative housing downwardly. The second contacts each has a second contact portion extending into the receiving space and a second soldering tail extending out of the insulative housing downwardly. All the first soldering tails are arranged closer to the mating face than the second soldering tails.