4 in 1. 600 x 600 dpi resolution (monochrome). Speed of 30 ppm. Two-sided printing. Prints from web and mobiles devices. 250-sheet paper tray. 35-sheet auto document feeder. 1200 x 1200 ppi colour scanner with scan-to options. 25-400% copier. 33.6 Kbps fax modem with 120 speed dials. 30,000-page monthly volume. Built-in security features. USB and Ethernet connectivity. 15.9 x 16 x 12.3 in. Sold by each.