The imageRUNNER ADVANCE 500iF/400iF models operate at speeds of up to 52 and 42 pages per minute (LTR) respectively in Black and White. Each model supports up to Legal -size media and includes a 100-sheet Duplex Automatic Document Feeder, Super G3 fax board, UFR II, PCL, Adobe PS 3 printing, Color Universal Send, One 550-Sheet Cassette, 100-Sheet Stack Bypass, 1.5GB of RAM, 80GB HDD, Drum Unit, 10/100/1000 Base-TX Ethernet and USB 2.0 connectivity.