Connector tongues that may provide a high signal quality or signal integrity to allow high speed data transfers, may be reliably manufactured, and may be durable and have good wear performance. One example may provide a connector tongue having contacts and traces formed on a printed circuit board. Using a printed circuit board for pathways through a connector tongue may provide low impedances for power traces, matched impedances for differential signal pairs, and shielding. This may provide a connector tongue that may provide a high signal quality or signal integrity to allow high speed data transfers. These and other examples may provide a connector tongue that is durable and has good wear performance by including side retention features on each side of the printed circuit board. The side retention features may be metallic, ceramic, or other durable material.