128MB Printer Memory Upgrade 4 HL-3400CN, HL-3450CN, HL-5000, HL-5040, HL-5050, HL-5050LT, HL-5070N, HL-5070DN, HL-5100, HL-5140, HL-5140, HL-5150D, HL-5150DLT, HL-5170DN 128MB Memory Module 100 Pin SODIMM HP OEM Part Number KTB-HL100/128, 26527 16x8 Configuration Compatible with Brother Printer Memory