1200 x 1200 dpi resolution:45ppm black;6 sec first page out / 35ppm colour 9 sec first page out print speed:Standard auto 2 sided printing. 150,000 pages per month; 650 sheets paper input; 3,150 sheets maximum ( optional) : 512MB / 1GB Memory ; Standard 40GB Internal Hard Disk Drive: USB 2.0 connectivity;Network connectivity 10/100/1000Base TX ethernet : OS compatibility Windows/Mac/Linux : Dimension ( WxDxH) 644 x 724 x 493mm : Weight 92 kg.