This Offset Stacker offers support for offset stacking, allowing organized handling of printed materials as they come out of the printer. This unit can support up to 250 sheets of letter/A4 paper (20 lb, 75 gsm). The Offset Stacker option is compatible with all Lexmark A3/Series 9 printers, this option will increase productivity and support your business needs. Accessory Type: Offset Stacker; Dimensions: 4.2 x 16.5 x 19.3; For Use With: Lexmark™ CS963e, CX833se, CX833xse, CX961se, CX961tse, CX962se, CX962tse, CX963se, CX963xse; Sheet Capacity: 250.