Lexmark 4-Bin Mailbox This output option offers four output destinations and installs on the top of the printer. This unit supports up to 100 sheets of paper (20 lb., 75 gsm) per bin of A4, A5, A6, JIS B5, Executive,Folio Letter, Legal, Oficio or Statement sizes. Only Paper (16 to 24 lb., 60 to 90 gsm) may be used with this unit. Up to three units may be installed. Any combination of Offset Stacker and 4-Bin Mailbox for up to a total of 3 devices may be configured. The 4-Bin Mailbox supports bin 'empty' and 'full' sensing. The 4-Bin Mailbox supports bin 'empty' and 'full' sensing. Up to three units may be installed. Any combination of Offset Stacker and 4-Bin Mailbox for up to a total of 3 devices may be configured. This unit supports up to 100 sheets of paper (20 lb., 75 gsm) per bin of A4, A5, A6, JIS B5, Executive,Folio Letter, Legal, Oficio or Statement sizes. Only paper (16 to 24 lb, 60 to 90 gsm) may be used with this unit. Product Type: Mailbox Brand Name: Lexmark Compatibility: Lexmark Printers: MS821dn MX822adxe MX826ade B2865dw MS821n MX822ade MX826adxe MS823dn MS825dn MS822de MS826de MS823n MS725dvn Manufacturer: Lexmark International, Inc Product Name: 4-Bin Mailbox Manufacturer Part Number: 50G0852 Manufacturer Website Address: http://www.lexmark.com Weight (Approximate): 6.30 kg