HP Scanjet 5590. Scanning: A4 / Letter (216 x 297 mm), Flatbed scanner, Up to 2400 dpi, Up to 999,999 dpi, < 28 secs, < 31 secs, 2400×2400 DPI, 256 levels of grey, CCD, up to 8 ppm; simplex mode, black and white, 200 dpi, 1-bit 8 ppm, 48-bit, Xenon fluorescent lamp, Charge coupled device (CCD). Paper handling: Standard, 50 sheets. Connectivity: Hi-Speed USB – compatible with USB 2.0 specifications. Weight & dimensions: 488 x 340 x 162 mm, 5730 g, 19.21 x 13.39 x 6.38 ". System requirements: 175