A male connector, including a male conductive base (MCB), having at least two first through-holes, including at least two shielding sleeves fastened on the male conductive base and electrically connected to the male conductive base, where each shielding sleeve defines a front-to-back through shielding cavity connected to a corresponding first through-hole of the at least two first through-holes, and further including at least two male differential pairs, wherein each male differential pair of the at least two male differential pairs is fastened in the shielding cavity through at least one of the at least two first through-holes, and where each male differential pair is electrically insulated from the male conductive base and the shielding sleeve.