This stapler offers single (long or short edge corner) and dual-position (long or short edge) stapling for up to 50 sheets of paper. The output bin supports up to 500 sheets of paper, and offers offset stacking to easily separate copies and/or print jobs. Compatible with all Lexmark A3/Series 9 printers, this option will increase productivity and support your business needs. Accessory Type: Staple Finisher; Dimensions: 5.9 x 21.5 x 20.6; For Use With: Lexmark™ CS963e, CX833se, CX833xse, CX961se, CX961tse, CX962se, CX962tse, CX963se, CX963xse; Sheet Capacity: 500.