Part Number Capacity Chip Organization Ranking DRAM Density Die Revision KSM64R52BS8-16MD 16GB X8 1R 16Gbit D KSM64R52BD8-32MD 32GB X8 2R 16Gbit D KSM64R52BD4-64MD 64GB X4 2R 16Gbit D KSM64R52BD4-128MB 128GB X4 2R 32Gbit B