Dell C3765dnf Color Laser Printer - 110V. Duplex Automatic Document Feeder (DADF). Flatbed scanner. Control panel - 4.3" Color LCD touchscreen.. 250-sheet output tray.. Front USB port. 150 sheet multipurpose tray with bypass function.. 550-sheet input tray. Print speed (Mono/Color) - Up to 36 pages per minute (ppm) (letter) in both mono and color / 35 ppm (A4). Duplex speed - Up to 23 pages per minute (ppm) (letter) in both mono and color / 23 ppm (A4). Print resolution - 600 x 600 dpi. User interface - 4.3 inch color touch screen and 10 digit keypad. Processor speed - 533 MHz. Memory (RAM) - 512 MB. Memory expansion - Up to 512 MB RAM via one DDR2 SO-DIMM slot (1024 MB RAM max including standard memory). Scan resolution - Optical: 1200 x 1200 dpi (color@platen); Software enhanced: 9600 x 9600 dpi (max). Scan depth - Color: 24-bit; mono: 8-bit grayscale, 1 bit lineart. Modem speed/Fax transmission speed (LTR) - Up to 33.6 Kbps / Approximately 3 sec per page. Fax job storage - 4 MB or up to 200 pages.