HP LaserJet Enterprise M634dn Multifunction Black and white Printer, Ethernet Only; Copier, Scanner. Print technology: Laser, Printing: Mono printing, Maximum resolution: 1200 x 1200 DPI. Copying: Colour copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Colour scanning, Optical scanning resolution: 600 x 600 DPI. Duplex functions: Print, Copy, Scan. Maximum ISO A-series paper size: A4. Product colour: White Business Laser Mono printing 1200 x 1200 DPI Printing colours: Black A4 52 ppm Colour copying Colour scanning Apple AirPrint, Google Cloud Print, HP ePrint, Mopria Print Service USB port Ethernet LAN Internal memory: 2048 MB Built-in processor 1200 MHz 33,2 kg