OMAX 640x480 USB Digital Microscope Camera Compatible with Windows and Mac OS X
Resolution: 640x480 pixels (0.3M pixels). Gross Weight: 0.62 kg. Interface: USB 2.0 only. Power: Direct via USB port. Advanced software for Windows Fits 3 mounting sizes: 23.2mm, 30mm and 30.5mm (two mounting adapters included).