Abstract: An auxiliary electronic card includes a card base member formed of a first material. The card base member has at least one electronic device mounted on the card base member. The card base member has a plurality of electrical edge contacts formed along an edge of a top surface of the card base member. The electrical edge contacts define a horizontal plane with respective upper surfaces of the electrical edge contacts. The electronic card also includes an edge shield member mounted at a vertical surface of the card base member at the edge of the card base member along which the contacts are formed. The edge shield member has a substantially horizontal upward-facing surface at an elevation that is no lower than the horizontal plane defined by the upper surfaces of the electrical edge contacts. The edge shield member is formed of a second material that has a coefficient of friction that is lower than a coefficient of friction of the first material.

Abstract: An electronic system includes a system board, a connector mounted on the system board, an electronic card attached to the connector, the card overhanging the connector at least on an inward end of the card, and a guide secured to the system board and spaced from the connector, wherein the guide is adapted to inhibit lateral movement of the card.