housing 213 and extending out of the housing 213 to electrically connect with the cable 3 each usb connector 21 has a pair of first side surfaces 215 parallel to a tongue thereof and a pair of second side surfaces 216 between the first side surfaces 215 the second side surfaces 216 are narrower than the first side surface 211 all the usb connectors 21 are downwardly assembled into the first cavities 126 from a top end of the lower housing 12 and uprightly retained in the first cavities 126 thereby the first side surfaces 215 are parallel to the side walls 112 122 and the second side surfaces 216 are parallel to the bottom wall 121 for making the four usb connectors 21 occupy a small area of the bottom wall 121 which can decrease a width of the cable connector assembly 100 the audio jacks 22 are flat for decreasing a height thereof and manufacture material the audio jacks 22 are stacked with each other along the up to down direction thereby the audio jacks 22 comprise an upper audio jack 223 and a lower audio jack 224 each audio jack 22 has a pair of third side surfaces 221 and a pair of fourth side surfaces 222 between the third side surfaces 221 the fourth side surfaces 222 are narrower than the third side surfaces 221 the lower audio jack 224 is downwardly assembled into the second cavity 128 from the top end of the lower housing 12 and uprightly retained in the second cavity 128 the third side surfaces 221 of the lower audio jack 224 are parallel to the side walls 112 122 and the fourth side surfaces 222 of the lower audio jack 224 are.