The NEW Genuine Samsung R307 Imaging Unit MLT-R307 is specifically designed for use with Samsung ML-451x/501x printers. This original Samsung unit is factory sealed and ensures high-quality printing performance. Compatible with ML-451X and ML-501X models, this imaging unit is a reliable choice for those seeking consistent and professional results. Made in China, this genuine Samsung product is a essential component for maintaining the efficiency and productivity of your Samsung printer.