Features
Provides more memory in the printer for carrying out complex print jobs so -
that your computer won't slow down and you can continue to work uninterrupted.
The extra memory is designed for the following units: Phaser 4600/N Laser Printer ,
Phaser 4600/DN Laser Printer , Phaser 4600/DT Laser Printer , Phaser 4620/DN Laser Printer ,
Phaser 4620/DT Laser Printer.