A second connector to be fitted and connected to a first connector, said first connector comprising a first insulator portion, a plurality of first conductive contacts held by the first insulator portion and arranged adjacent to one another in a predetermined direction, and an operating member rotatably held by the first insulator portion, the first insulator portion including an insulator holding the first conductive contacts, and a frame coupled to the insulator, holding the operating member, and fitted to the second connector, the second connector comprising:
- a second insulator portion;
- a floating member held by the second insulator portion to be rotatable and slidable in the predetermined direction, the floating member having a first surface and a second surface facing the first conductive contacts and the operating member, respectively, in a mutually fitted state where the first and the second connectors are fitted to each other;
- and
- a plurality of second conductive contacts having one parts held by the first surface and arranged adjacent to one another in the predetermined direction,
- the floating member being rotated in a first rotating direction to bring the second conductive contacts into contact with the first conductive contacts when the operating member is rotated in the mutually fitted state.