U-Probe, 16-chan w/ 15µm electrode diameter, stereotrode; 50µm intertrode, 150µm intratrode spacing; 100mm probe length (25mm; 640µm diameter reinforcement tube); 310µm probe diameter; with 2x CON/8050m connector interface; 300µm tip to 1st site; REF1 and REF2 are not connected.