ddr3 sdram MT41J512M4 64 Meg x 4 x 8 Banks MT41J256M8 32 Meg x 8 x 8 Banks MT41J128M16 16 Meg x 16 x 8 Banks 2Gb: x4, x8, x16 ddr3 sdram Features ddr3 sdram MT41J512M4 ?64 Meg x 4 x 8 Banks MT41J256M8 ?32 Meg x 8 x 8 Banks MT41J128M16 ?16 Meg x 16 x 8 Banks