This PC link Digital Microscope is not only a regular microscope but also a digital microscope, web camera and digital camera. Explore the world of microorganisms and cells. Capture images and videos at 640 x 480 pixel resolution. You can also use the detachable web camera just like a standard web camera for video conference! Features: 100 x / 300x / 450x / 600x / 900x power microscope, metal stand attached, 1/4.5-inch color CMOS (310K effective pixels) image sensor. Interface: USB 1.1