US Patent 8944830 Connector with differently arranged contact mounting portions and connector assembly have two such connectors belly-to-belly mounted to a circuit board

A high speed card edge connector (20, 30) includes an insulative housing (21, 31), and a number of first, second, third, and fourth contacts (221-224) received in the insulative housing and arranged in a number of first columns (25) and a number of second columns (26). Each of the first columns includes one first, one second, and one third contacts. Each of the second columns includes one first, one fourth, and one third contacts. Each of the first to the fourth contacts includes a mounting portion (22b). The mounting portions of the second and the fourth contacts are designed as penetration type termination, and the mounting portions of the first and the third contacts are designed as surface mounted type termination. The mounting portions of the second and the fourth contacts are arranged in different rows.