V-Probe, 64-chan w/ 15um electrode dia; Sites 1-32 with 100um interelectrode; 4.0mm between sites 32 and 33, Sites 33-64 with 100um inter electrode spacing; 320um shaft dia; 120mm total probe length; 20mm, 640um dia reinforcement tube; 2 x CON/32m-V connector interface; 300um from tip to first site