HP Color LaserJet 2550LN Printer 600 x 600 dpi color and black resolution Up to 4 ppm color, 20 ppm black; manual duplexing 264 MHz processor, 64 MB memory, expandable to 192 MB Parallel, USB 2.0, and 10/100Base-TX Ethernet/Fast Ethernet RJ-45 ports PC and Mac compatible; 1-year warranty