Lexmark 40G0852 4-Bin Mailbox 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 Compatible with MS812de, MS812dn, MS810de, MS811dn, MS810dn, MS812dtn, MS810n, MS811n, MS810dtn, MS811dtn, MS711dn, MS710dn Media Sizes Supported: A4, A5, Executive, Folio, JIS-B5, Legal, Letter, Statement, Oficio, A6