USB DIGITAL PEN MICROSCOPE 12 MM *Interface: USB2.0. *30 frames/sec (CIF and VGA) *Focal distance: 3mm - infinity *Magnification: 1x - 500 adjustable *USB cable length: 2 meters; *Use for Windows XP, Vista,Windows 7,Wingdows 8 & MAC *Aluminum Alloy Stand: high level is adjustable *Pen direction: 360 adjustable DSP: High power Digital Image Monarch Processor. Sensor: high-quality CMOS sensor, 2M pixel(hardware,no Interpolation) Resolution: 640X480,1600 X 1200 (set resolution: menu---options--video capture pin... ) Interface: USB1.1/USB2.0. Frame rate: 30 frames/sec (When resolution at 640 X 480),1600 X 1200 5frames /sec Focal distance: 5mm - 30mm (when Focal distance infinity,the microscope as a webcam,can not magnify). Diameter: 12mm USB cable Length: about 165cm, USB cable color: black or transparent color (random) Lighting: 8 X LED around the camera lens Powered By: USB Connector (5V DC)