Print Black-and-white and color: up to 21 ppm, letter. Up to 600 by 600 dpi; HP ImageREt 3600. 128 MB RAM std, exp to 384 MB RAM via one open 144-pin DDR2 DIMM slot.50-sheet multipurpose tray, 250-sheet tray. 150-sheet output bin. Hi-Speed USB 2.0 port, built-in E 'net/Fast E 'net networking .HP PCL 6, HP PCL 5c, HP postscript level 3 emulation. Use: CC530/31/32/33A