The HP Color LaserJet 4600 printer gives you high-speed color laser printing – at an affordable price. Improved over its successful predecessor, the 4550, the 4600 offers more than four times faster color printing at 17 ppm, two large paper trays with 50% more capacity (100-sheet and 500-sheet), and 72% more processing speed, It has 50% more memory, 400MHz and 96MB, for fast printing of complex jobs, both black & white and color. This powerful printer is also a robust networker (optional networking on base model), takes an extra optional 500-sheet paper tray (pictured at left), and expandable memory to 416MB.