PROBLEM TO BE SOLVED: To prevent deterioration of signals while reducing the size.SOLUTION: A receptacle includes: a cylindrical outer frame plural pairs of female side first and second differential contacts 916 and 917, which are disposed in the outer frame, to which plural pairs of differential signals are allotted respectively and plural first female contacts 914 including plural female side ground contacts 918 to which the ground is allotted respectively. Viewing from a direction along a center axis Ax of the outer frame, the plural first female contacts 914 are arranged in two rows so that the pair of female side first and second differential contacts 916 and 917 are neighboring to each other and the number of the female side ground contacts 918 neighboring to the female side first differential contacts 916 in the pair of the female side first and second differential contacts 916 and 917 is the same as the number of the female side ground contacts 918 neighboring to the female side second differential contact 917.COPYRIGHT: (C)2016,JPO&INPIT【課題】小型化を図りつつ信号の劣化を防止すること。【解決手段】レセプタクルは、筒状の外郭と、当該外郭内に設けられ、複数の対となる差動信号がそれぞれ割り当てられる複数の対となるメス側第1,第2差動コンタクト916,917、及びグランドがそれぞれ割り当てられる複数のメス側グランドコンタクト918を有する複数の第1メスコンタクト914とを備える。複数の第1メスコンタクト914は、外郭の中心軸Ax´に沿う方向から見て、対となるメス側第1,第2差動コンタクト916,917同士が隣り合い、かつ、対となるメス側第1,第2差動コンタクト916,917のうちメス側第1差動コンタクト916に隣り合うメス側グランドコンタクト918の数とメス側第2差動コンタクト917に隣り合うメス側グランドコンタクト918の数とが等しくなるように、二列で並設されている。【選択図】図10
