Crucial 8GB (2x4GB) DDR3 DIMM 240-pin 1600 MHz/PC3-12800 CL11 1.35V unbuffered non-ECC
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Crucial 4GB DDR3 1600 MT/s (PC3-12800) CL11 Unbuffered ECC UDIMM 240pin 1.35V/1.5V (4Gb 9 chip)
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