512MB PC133 144 pin SDRAM SODIMM Memory for Brother Printer MFC-8680DN, MFC-8880DN, MFC-8890DW, HL-5280DW, HL-5350DN, HL-3070CW 512MB printer memory upgrade Part#: Brother -512MB-PC133S 100% Compatible with Lifetime Warranty Manufactured by Keystron, LLC Keystron is a registered trademark of Keystron, LLC