Compatible with Pro M227fdn, M227fdw, and related double-sided devices.This replacement part is designed for use with models requiring toner cartridge numbers 227 and 203.Each unit is tested prior to shipment to proper functionality and compatibility.Packaging is designed to protect the item during transit and prevent toner leakage.The physical appearance of packaging may vary between production batches; such variation does not affect function or compatibility.Verify your printer's exact model number before purchase to correct fit.