A cable connector assembly has a first connector, a second connector and a ribbon cable connecting the first and the second connectors. The first connector includes a first insulating housing, a number of first contacts and a first shielding covering the first insulating housing. Each first contact includes a first contacting portion, a first retaining portion and a first connection portion. The first shielding has a first grounding section. The second connector includes a second insulating housing, a number of second contacts and a second shielding. Each second contact includes a second contacting portion, a second retaining portion and a second connection portion. The second shielding has a second ground section. The ribbon cable includes a number of wires, each wire having one end electrically connecting with the first connection portions and the first grounding section and having the other end electrically connecting the second connection portions and the second ground section.