The Lexmark 550 sheet tray, model number 40C2100, is a high-quality accessory for your printer. Designed to work specifically with Lexmark CX and CS series printers, this tray has a total paper capacity of 500 pages. The tray is made in China and comes in a sleek white color. This unit type tray is compatible with a variety of Lexmark printer models, including the CS730de, CX737adzse, CS720de, CX725dthe, CS737dze, CS725de, CS735de, CS720dte, CX735adse, CX725de, CS725dte, CX730de, and CX725dhe. It is a reliable and durable option for storing and feeding paper into your printer.