For best picture quality the following specifications are recommended: 1. IBM PC compatible computer 2. Intel Pentium III processor or above 3. 128M RAM or above 4. At least 3 USB ports (For best effect USB 2.0 port is recommended) 5. Windows XP Vista and Windows 7 TECHNICAL SPECIFICATIONS 1. DSP: High Quality Digital Image Monarch Processor 2. Sensor: high-quality CMOS sensor 3. Resolution: 1600 x 1200 4. Interface: USB 2.0 5. Frame rate: 30 frames/sec (CIF and VGA) 6. Focal distance: 5mm - infinity 7. Magnification: 1X~200X (at 5mm FOCUS and display on 17" screen by 1600 x 1200 resolution)