Make a useful addition to your home or work office with Carson's zOrb Digital USB Microscope. It is a handy and compact magnifying tool for studying a multitude of objects ranging from stamps and coins to plant or insect specimens. The scope powers up from your computer's 2.0/3.0 USB port and produces 1600 x 1200 still images or videos that are viewable from your computer's monitor. The effective magnification of your images can be simply calculated by multiplying the size of the monitor in inches by 3.17. To ensure that your specimens generate bright images, the scope also features an illumination ring made up of 4 white LEDs, surrounding the 2.0MP CMOS camera sensor. Also included with this USB microscope are two clear plastic specimen containers and a viewing software CD.