2PC MX-312NR 312NR OPC Drum for MX M260 M310 M264 M314 M354 M265 M266 M316 M356 AR 5726 5627 5731 Organic Photo Conductor Replacement OPC drum unit compatible with specified MX and AR series printers.Designed to work with models including M260, M310, M264, M314, M354, M265, M266, M316, M356, AR 5726, 5627, and 5731.Each pack contains two units.Installs directly into the printer without additional setup.consistent print performance and image clarity during its service life.