Abstract: In one version, a PC card has a printed circuit board assembly (11) that is interposed between card shields (5,6). This PC card is frameless. In another version, a PC card has: card shields (103,104); a printed circuit board assembly (110) interposed between the card shields; and two interposing side frames (105, 105′).

Abstract: A two-part socket unit for receiving and contacting a plug unit of a modular jack assembly of the type for fitting near an edge of a printed circuit board. The socket unit comprises an approximately rectangular housing having a bottom and top wall to which two side walls and a front and rear wall connect. The front wall is provided with an insertion aperture for the plug unit. In the housing resilient contact fingers extend for contacting the plug unit. The contact fingers extend directly or virtually directly in the housing connecting to the insertion aperture in the front wall. For fixing to the outside of the housing in front of the front wall, a panel is provided having a window which in the fitted state connects to the insertion aperture and contains latching means for latching the plug unit onto the socket unit. The panel has an essentially U-shaped cross-section of such size that the latching means lie at a distance from the front wall of the housing when the panel is fitted.