This Stereo Zoom microscope is a high-quality microscope that offers exceptional resolution of 1280 x 1024. This trinocular microscope features a drawtube that allows for easy viewing and analysis of samples. With its compact dimensions of 45x45 cm, this microscope is perfect for use in small laboratories or classrooms. The focal distance of 10mm ensures that users can easily focus on their samples for accurate analysis. This microscope also features a USB1.1 interface for easy data transfer and analysis. With its high-quality optics and user-friendly design, the MC-H7S-4KHU Trinocular Microscope is the perfect choice for any laboratory or classroom.