DDR2-P-SC-UT6 DDR2-P-X2-U6 DDR2-P-X2-UT6 DDR2U27Y DDR-2ZZRA5P24LY121 DDR3 DDR3 1333 204P 4GB w/ECC(Indus.) DDR3 1600 DDR3 1600 204P 8GB DDR3 GT8UB128M8DN-BG