Epson Perfection V550 Photo color scanner / 6400 dpi / Color: 48-bit / Grayscale: 16-bit / 3.4 Dmax / Scaling zoom: 50 ? 200% (1% step) / 4 buttons: Scan, E-mail, Copy and PDF / Speed: 21.0 msec/line (mono), 21.0 msec/line (full color) / Hi-Speed USB 2.0