An electrical connector includes an insulative housing, a number of electrical contacts and an IC (Integral Circuit). The insulative housing has a body and a contact insert received in the body. The electrical contacts are secured to the contact insert and each has a mating end, a solder end projecting out of the insulative housing and a connecting end located therebetween. The IC is bonded to contact insert for electrical connecting with the connecting ends of the electrical contacts, respectively.