A cable assembly includes a plurality of wires and a plurality of electrical contacts. The electrical contacts include contact sections and wire connection sections, and the wire connection sections of the electrical contacts are respectively connected to the wires. Two adjacent electrical contacts for transmitting signals have a first center distance and a reduced center distance. The first center distance is adjacent to the contact sections, and the reduced center distance is between the first center distance and the wire connecting sections. In addition, the first center distance is greater than the reduced center distance to improve signal integrity.