4Pcs 202A CF500A 203A CF540A Chip Reset For Pro M254 M254dw M254nw MFP M280 M280nw M281cdw M281fdn M281fdw Chip This reset chip is designed for use with Pro M254, M254dw, M254nw, MFP M280, M280nw, M281cdw, M281fdn, and M281fdw printers.It supports toner cartridge models 202A, CF500A, 203A, and CF540A.The chip enables cartridge recognition by the printer and helps restore functionality after refilling.Each pack includes 4 reset chips for multiple uses or replacements.Installation is straightforward and does not require additional tools. This replacement part is independently produced.All brand references are for compatibility demonstration only.