Abstract: An electrically configurable connection matrix provides connection of computing and/or telecommunication systems. The matrix comprises a dielectric support on which first and second networks of N electrical lines are formed. The electrical lines of the first network are connected to the pins of at least one input/output port. Each electrical line of rank k of the first network is connected by a permanent electrical connection to the electrical line of like rank k of the second network. Each electrical line of rank q.noteq.k of the first network is electrically connected by a configurable electrical connection in the on or off state to the line of rank k of the second network. The switching on or off of a plurality of the configurable electrical connections provides an electrical link between two adjacent or non-adjacent electrical lines of the first network.