DELL 3130cn. Maximum resolution: 600 x 600 DPI, Duplex printing: Optional, Print technology: Laser. Print speed (black, normal quality, A4/US Letter): 30 ppm, Print speed (colour, normal quality, A4/US Letter): 25 ppm. Internal memory: 256 MB, Maximum internal memory: 1175 MB. Maximum input capacity: 950 sheets, Multi-Purpose Tray capacity: 150 sheets. Maximum output capacity: 250 sheets