A device for transcutaneous electrical stimulation is provided. The device comprises circuitry configured to generate transcutaneous stimulation signals. The device also comprises a first signal output component for electrically connecting to a first electrode connector to deliver generated transcutaneous stimulation signals. The first signal output component comprises a first four-pole electrical connector part. The device further comprises a second signal output component for electrically connecting to a second electrode connector to deliver generated transcutaneous stimulation signals. The second signal output component comprises a second four-pole electrical connector part. The device further comprises a controller to selectively control output of the stimulation signals to selected pairs of poles across the first and second four-pole electrical connector parts. Each selected pair of poles comprises one pole from the first four-pole electrical connector part and one pole from the second four-pole electrical connector part.