An electrical connector comprising: a receptacle component including: a receptacle body portion having a receptacle base and a pair of opposed walls (116, 118) extending from the receptacle base in a first direction, the pair of opposed walls (116, 118) defining a gap therebetween; and a plurality of first metal contacts (126, 132) coupled to the receptacle body portion, the first metal contacts (126, 132) each having first ends (128, 134) surrounded by the pair of opposed walls (116, 118) and second ends (130, 136) extending from the receptacle base in a direction opposite the first direction; and a plug component; characterized in that the pair of opposed walls (116, 118) each has one or more openings facing the first direction formed in the respective ends of the opposed walls (116, 118) and in that the plug component includes: a plug body portion having a plug base and a projection extending from the plug base in a second direction, the projection sized to fit within the gap between the pair of opposed walls (116, 118) of the receptacle component; and a plurality of second metal contacts (150, 156) coupled to the plug body portion, the second metal contacts (150, 156) each having first ends (152, 158) extending from the plug base in the second direction and second ends (154, 160) extending from the plug base in a direction opposite the second direction, the first ends (152, 158) of the second metal contacts (150, 156) positioned to extend into the openings in the pair of opposed walls (116, 118) when the projection is positioned within the gap between the pair of opposed walls (116, 118). a receptacle component including: a receptacle body portion having a receptacle base and a pair of opposed walls (116, 118) extending from the receptacle base in a first direction, the pair of opposed walls (116, 118) defining a gap therebetween; and a plurality of first metal contacts (126, 132) coupled to the receptacle body portion, the first metal contacts (126, 132) each having first ends (128, 134) surrounded by the pair of opposed walls (116, 118) and second ends (130, 136) extending from the receptacle base in a direction opposite the first direction; and a receptacle body portion having a receptacle base and a pair of opposed walls (116, 118) extending from the receptacle base in a first direction, the pair of opposed walls (116, 118) defining a gap therebetween; and a plurality of first metal contacts (126, 132) coupled to the receptacle body portion, the first metal contacts (126, 132) each having first ends (128, 134) surrounded by the pair of opposed walls (116, 118) and second ends (130, 136) extending from the receptacle base in a direction opposite the first direction; and a plug component; characterized in that the pair of opposed walls (116, 118) each has one or more openings facing the first direction formed in the respective ends of the opposed walls (116, 118) and in that the plug component includes: a plug body portion having a plug base and a projection extending from the plug base in a second direction, the projection sized to fit within the gap between the pair of opposed walls (116, 118) of the receptacle component; and a plurality of second metal contacts (150, 156) coupled to the plug body portion, the second metal contacts (150, 156) each having first ends (152, 158) extending from the plug base in the second direction and second ends (154, 160) extending from the plug base in a direction opposite the second direction, the first ends (152, 158) of the second metal contacts (150, 156) positioned to extend into the openings in the pair of opposed walls (116, 118) when the projection is positioned within the gap between the pair of opposed walls (116, 118). a plug body portion having a plug base and a projection extending from the plug base in a second direction, the projection sized to fit within the gap between the pair of opposed walls (116, 118) of the receptacle component; and a plurality of second metal contacts (150, 156) coupled to the plug body portion, the second metal contacts (150, 156) each having first ends (152, 158) extending from the plug base in the second direction and second ends (154, 160) extending from the plug base in a direction opposite the second direction, the first ends (152, 158) of the second metal contacts (150, 156) positioned to extend into the openings in the pair of opposed walls (116, 118) when the projection is positioned within the gap between the pair of opposed walls (116, 118).