@-CAM USB Camera use USB interface, No need any card and extra power supply, You just need plug to USB connector in your computer back and finished all setup. easy get video for multimedia application. Add a new dimension to your PC and get onto the video superhighway with @-Cam USB Camera a complete desktop video conferencing solution for everybody, in every home and in every office, You can now call your friend and family hands on and face to face by simple touch of a button. With the new powerful communications software. The @-Cam USB delivers an exciting real-time video conferencing application over the Internet, point-to -point via standard telephone lines(POTS), ISDN and Internet. @-Cam USB have "Auto Light Enhancement Technologies", this technologies can auto adjust video to bestest in any environment, so now, your can get very clean and high quality video from @-Cam. @-Cam USB have high speed video and best performance, Use Hardware video compression chipset, @-Cam USB have 30 frame per second video.