Part Number: Q1866A HP LaserJet 5100 Optional 500 Sheet Feeder With Tray Compatibility: HP Laserjet 5100 Series Media Sizes: Adjustable from 8.5"x11" to 11"x17" Capacity: 500 Sheets This option is great for large scale companies that want to cut out down time on loading paper, and for consumers who do a large number of print jobs. This accessory reduces user intervention and increases productivity through higher input capacity and media versatility. Weight: 25 lbs Warranty: 90 Day