Plugable USB 2.0 Digital Microscope with Flexible Arm Observation Stand Compatible with Windows, Mac, Linux (2MP, 250x… Price: $39.95 (as of 16/11/2020 04:47 PST- Details)

Useful and fun for students, collectors, testers, and anyone interested in exploring the microscopic world.
2.0 Megapixels, up to 250x magnification (Note: Final magnification corresponds to monitor size)
Uses a webcam chipset and sensor to support nearly any operating system using standard webcam software.