Different manufacturers can have the exact same part number. Make sure to check your part links to one of our models! Please contact us if you need help.
Samsung: CLX-6210FX CLX-6240FX CLP-660N ML3750ND/BMB SLC2680FX/XAA SLFIN502L/SEE SLHCF501B/SEE SLHCF501B/XAA SLHCF501S/SEE SLHCF501S/XAA SLM2835DW/XBH
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R-chip
2007-000643, SAM2007-000643