Electrical connector having a locking mechanism

An electrical connector, comprising:

• an insulative housing having a first side and a second side opposite to each other;
• a plurality of contacts retained in the corresponding contact-receiving passageways of the insulative housing;
• a plurality of wires mechanically and electrically connected with the contacts;
• and
• a locking mechanism for locking the electrical connector with a complementary connector;
• wherein
• the locking mechanism comprises a rotating member rotatably connected to the insulative housing and a fastener on an inner side of the rotating member, the rotating member has a pair of opposite rotary arms and an holding arm connected with the two rotary arms, the rotary arms are rotatably connected to the insulative housing, and the fastener is arranged on an inner side of the holding arm, the rotating member has a first status and a second status which can be switched by rotation, while the rotating member in the first status, the electrical connector and the complementary connector can be freely plugged in or separated from each other, and while the rotating member being rotated to near or in the second status, the fastener rotates or shifts to achieve a locking of the electrical connector and the complementary connector.