HP PageWide Enterprise Color 556dn - Print: Up to 50 ppm black & Up to 50 ppm colour; Up to 1200 x 1200 optimized dpi (when printing from a computer on ColorLok paper, Premium Inkjet Presentation Paper Matte, and Inkjet Brochure Paper Matte and 600 x 600 input dpi) black, Up to 2400 x 1200 optimized dpi (when printing from a computer on Advanced Photo Papers and 600 x 600 input dpi) colour; Up to 80,000 pages per month duty cycle; 1280 MB; 2 Hi-Speed USB 2.0 Host; 1 Hi-Speed USB 2.0 Device; 1 Gigabit Ethernet 10/100/1000T network; 1 Hardware Integration Pocket