GbX Backplane Connectors Molex GbX Backplane Connectors feature a maximum per contact current of 6A and a data rate of 8Gbps. GbX connectors feature 48 circuits, 1.3µm gold plating, and durability of 200 maximum mating cycles. These Molex connectors employ a push/pull lock and release feature, and is designed to be used in applications where space is at a premium. The Molex Modular Backplane System based on this connector simplifies RF signal routing in board-to-board applications.