An RF connector assembly (100) assembly has a first connector and a second connector (3) electrically connecting with the first connector. The first connector includes a first main body (11) defining an interior space (110), an insulative member (12) received in the interior space, a center conductor (13) retained within the insulative member, a flexible bushing (14) and a magnetic member (15) retained in the interior space. The second connector includes a mating member (35) firmly resisting against the flexible bushing under an attractive force exerted by the magnetic member.