The RM2-5392 250-Sheet Paper Tray 2 Cassette is an essential accessory for the Pro M402, M403, M426, and M427 series printers. This tray adds significant paper capacity to your printer, allowing you to load an additional 250 sheets of paper. This is particularly beneficial for offices with high printing demands, as it reduces the need for frequent paper reloading. The tray is easy to install and ensures smooth and reliable paper feeding, reducing the risk of paper jams and interruptions during your printing tasks. It's a valuable addition to these LaserJet Pro printers, enhancing their overall efficiency and productivity.