A connector device includes a first connector and a second connector to be connected the first connector. The first connector includes a first housing, a plurality of first signal terminals arranged in the first housing, and a first shell for covering an outer portion of the first housing. The second connector includes a second housing, a plurality of second signal terminals arranged in the second housing, a second shell for covering an outer portion of the second housing, and a first ground terminal disposed between the second signal terminals for separating the second signal terminals. When the first connector is connected the second connector, the first signal terminals contact with the second terminals.