AmScope 40X-2000X Professional Infinity Plan Achromatic Trinocular Compound Microscope Superior infinity Plan Achromatic optical system offering crisp clear images 40X-2000X eight extreme widefield magnification settings Backward nosepiece configuration allows spacious viewing for a more comfortable observation Kohler halogen illumination with iris base condenser compatible with wide band voltage (from 85V to 230V) power supplies The trinocular port uses the third port for camera capabilities, giving you the remaining two ports to view your specimen