An electrical connector pair 1 includes a receptacle connector 1a and a plug connector 1b. The receptacle connector 1a includes a first partition wall 12a, and the plug connector 1b includes a second partition wall 12b. When the receptacle connector 1a and the plug connector 1b are fitted together, the first partition wall 12a partitions a portion of the boundary between a third holder and a fourth holder where the second partition wall 12b is not formed such that a first contact 10a and a third contact 10b cannot be seen from a second contact and a fourth contact.

An electrical connector pair 1 includes a receptacle connector 1a and a plug connector 1b. The receptacle connector 1a includes a first partition wall 12a, and the plug connector 1b includes a second partition wall 12b. When the receptacle connector 1a and the plug connector 1b are fitted together, the first partition wall 12a partitions a portion of the boundary between a third holder and a fourth holder where the second partition wall 12b is not formed such that a first contact 10a and a third contact 10b cannot be seen from a second contact and a fourth contact.

An electrical connector with improved high frequency performance. The connector has conductive elements, forming both signal and ground conductors, that have multiple points of contact distributed along an elongated dimension. The ground conductors may be formed with multiple beams of different length. The signal conductors may be formed with multiple contact regions on a single beam, with different characteristics. Signal conductors may have beams that are jogged to provide both a desired impedance and mating contact pitch. Additionally, electromagnetic radiation, inside and/or outside the connector, may be shaped with an insert electrically connecting multiple ground structures and/or a contact feature coupling ground conductors to a stiffener. The conductive elements in different columns may be shaped differently to reduce crosstalk.

An electrical connector with improved high frequency performance. The connector has conductive elements, forming both signal and ground conductors, that have multiple points of contact distributed along an elongated dimension. The ground conductors may be formed with multiple beams of different length. The signal conductors may be formed with multiple contact regions on a single beam, with different characteristics. Signal conductors may have beams that are jogged to provide both a desired impedance and mating contact pitch. Additionally, electromagnetic radiation, inside and/or outside the connector, may be shaped with an insert electrically connecting multiple ground structures and/or a contact feature coupling ground conductors to a stiffener. The conductive elements in different columns may be shaped differently to reduce crosstalk.

A system board is provided that includes a connector. The connector includes a pinfield. The pinfield includes a set of differential signal conductors to correspond to pins of a set of differential signaling pairs; a set of one or more auxiliary signal conductors to carry auxiliary signals; and a plurality of thru-hole ground vias adjacent to a particular one of the auxiliary signal conductors in the set of auxiliary signal conductors.

A system board is provided that includes a connector. The connector includes a pinfield. The pinfield includes a set of differential signal conductors to correspond to pins of a set of differential signaling pairs; a set of one or more auxiliary signal conductors to carry auxiliary signals; and a plurality of thru-hole ground vias adjacent to a particular one of the auxiliary signal conductors in the set of auxiliary signal conductors.

A connector cable includes a plurality of contacts placed in a row and a plurality of cables connected to the plurality of contacts. The plurality of cables includes at least three pairs of high-speed differential signal lines for transmitting high-speed differential signals, at least one non-high-speed differential signal line for transmitting a non-high-speed differential signal, and a plurality of ground terminals. The plurality of ground terminals is allocated to contacts on both ends among the plurality of contacts and a contact between two pairs of high-speed differential signal lines or between one pair of high-speed differential signal lines and one non-high-speed differential signal line to limit the number of consecutive pairs of high-speed differential signal lines to two.

A connector cable includes a plurality of contacts placed in a row and a plurality of cables connected to the plurality of contacts. The plurality of cables includes at least three pairs of high-speed differential signal lines for transmitting high-speed differential signals, at least one non-high-speed differential signal line for transmitting a non-high-speed differential signal, and a plurality of ground terminals. The plurality of ground terminals is allocated to contacts on both ends among the plurality of contacts and a contact between two pairs of high-speed differential signal lines or between one pair of high-speed differential signal lines and one non-high-speed differential signal line to limit the number of consecutive pairs of high-speed differential signal lines to two.

An electrical plug connector having a housing and a contact carrier held inside the housing. It comprises an electrically insulating base part and at least one pair of first electrical contacts for transmitting energy and multiple pairs of second electrical contacts for transmitting data. The contacts are held in the base part and arranged so as to be distributed in a plane extending essentially perpendicular relative to the longitudinal axis of the contact elements and the contact carrier. First distance lines between the contacts of the pairs of first contacts are free of overlaps with second distance lines between the contacts of the pairs of second contacts.

A shielded flat cable includes multiple flat conductors arranged in parallel, a lower insulating layer provided on lower surfaces of the multiple conductors, a lower shield layer provided on a lower surface of the lower insulating layer, a lower protective layer provided on a lower surface of the lower shield layer, a lower contact portion that is exposed from the lower protective layer and provided to contact a second contact member of the connector, and that is electrically coupled to the lower shield layer, a terminal in which the multiple conductors are exposed at an end, and a reinforcing plate provided on the lower surface of the lower insulating layer and the lower surfaces of the multiple conductors at the terminal. The multiple conductors extend along the lower insulating layer and the reinforcing plate, and the lower contact portion and the terminal overlap in a side view.