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for: MS310 MS310dn MS310d MS410dn MS415 MS510 MS510dn MS610 MS610dn MS610de MS610dte MS610dtn MS312 MS312dn MS315 MS315dn MS415 MS415dn Printers for: MS310 MS310dn MS310d MS410dn MS415 MS510 MS510dn MS610 MS610dn MS610de MS610dte MS610dtn MS312 MS312dn MS315 MS315dn MS415 MS415dn Printers Features: Up to 5,000 pages per 501H toner cartridge unit at 5% coverage letter a4 Content: 2 pack 50F1H00 501H Toner Cartridge Our professional factory, expert R&D team, dedicated , and reliable after-sales support ensure that your interests are fully protected. If you encounter any product, usage, or quality issues, please feel free to us. Our average response time is 4.9 hours, and we are here to assist you promptly.