The MM-80 has been developed to satisfy competing goals of "stability" and "compactness" that are essential for research work in electrophysiology. Generally, the higher the stability, the less compact it becomes. While maintaining stability, the MM-80 is designed to reduce the drive unit size to a minimum and deliver the performance to satisfy the requirements of researchers. The compact space-saving drive unit provides long working distance (20mm for fine travel and 30mm for coarse travel). In addition, the MM-80 incorporates "electrode holder fixing with angle gauge" that enables you to read the angle of a patch clamp headstage, which helps reduce stress during an experiment. "Rotation mechanism" has been also incorporated, allowing the motorized fine drive unit to rotate toward you to facilitate replacing the microelectrode or specimen.