Just pop in a CompactFlash card and go! Transfer your photos to and from any computer with an available USB port. With no drivers required for modern operating systems, the reader is ready for immediate use. Works with all CompactFlash from Lexar and other brands. Easily connects to your computer through your USB port and needs no external AC power. Its small size, and detachable cable, makes it convenient to carry the reader with you on your travels. Use your batteries for taking more pictures with your camera instead of transferring images to your computer. The CompactFlash Reader lets you transfer your photos without even turning your camera on.