256MB DDR2 Memory Brother Laser Printer HL DCP MFC 4150CDN 4570CDW 5450DN 5470DW 5470DWT 6180 8510DN MFC-8690DW 8710DW 8810DW 8910DW 8950 9125CN 9325CW 9460CDN 9560CDW 9970CDW 8110DN 8150DN 8155DN P/N: MK533/256MB, KTB-HL533/256 256MB PC2-4200 144pin Sodimm x16 bit