It is recommended for medium to large offices and workgroups since it features built-in duplex printing, a large 550-sheet input tray and output bin, and a 100-sheet automatic document feeder. The Lexmark X651de is designed with a large 7" color touch screen, 600MHz processor, and 256MB of internal memory. It is Energy Star qualified and includes Eco and Quiet modes for reduced noise and lower power consumption. The printer can also be upgraded to include additional paper trays and an integrated hard disk. The X651de uses high-yield print cartridges and comes with a 1 year limited warranty.