Abstract: An electrical connector with light emitting device. The electrical connector includes a casing, an insulative housing disposed inside the casing. A light emitting device and a light transmitting element are disposed on top of the insulative housing. The insulative housing includes two slots disposed on top of the insulative housing. A groove is disposed on a distal front end of each of the slots. The light emitting device is fitted into the slot above the insulative housing so that a certain distance is maintained between the light emitting device in the slot and the light transmitting element. The casing covers the outer part of the insulative housing, the light transmitting device, and the light transmitting element wherein at least a front side of the insulative housing and a front side of the transmitting element are exposed.