This unit supports A4, A5 (long edge first), Folio, Letter, Legal and Oficio sizes. Only Paper (16 to 36 lb , 60 to 135 gsm) may be used from this unit. Install below any other trays. Paper size, paper and tray-present and tray-low and tray-empty sensing are supported. If the product configuration contains the 2, 100-Sheet Tray, the optional caster base is required. The Spacer cannot be used with the 2100-Sheet Tray. . Manufacturer: Lexmark International, Manufacturer Part Number: 50G0804. Brand Name: Lexmark. Product Name: 2100-Sheet Tray. Product Type: Paper Tray. [Technical Information] Media Capacity: 1 x 2100 Sheet. Total Media Capacity: 2100. Media Size: A4 - 8. 30" x 11. 70". A5 - 5. 80" x 8. 30". Folio - 8. 27" x 13". JIS B5 - 6. 90" x 9. 80". Letter. Legal - 8. 50" x 14". Oficio. Media Type: Plain Paper. [Physical Characteristics] Height: 13. 8". Width: 16. 6". Depth: 20. 1". Weight (Approximate): 39 lb. [Miscellaneous] Compatibility: Lexmark Printers: B2865dw MS725dvn MS821dn MS821n MS822de MS823dn MS823n MS825dn MS826de MX721ade MX721adhe MX722ade MX722adhe MX826adxe . Country of Origin: China.