... , Skin examination, Scal examination, Textile Inspection, Jewelry Inspection, Collections/Coin Inspection, Printing Inspection,PCB or PCBA Inspection and so on ... 640x480, 352x288, 324x240, 160x120 Magnification Ratio: 20X ~ 400X Light source: 8 white LED Power Supply: USB Port (5V DC) Photo format ... 1 x 400x 1.3MP Digital Microscope Camera USB 8 white LED USB Video Camera 20X-400X Digital Microscope# ...