64 GB (4x 16 GB) RDIMM ECC REG DDR3-1600 Supermicro X8DTU-LN4F+-LR Server RAM. 64 GB 4x 16 GB Rdimm ECC DDR3-1600 Supermicro X8DTU-6F LR X8DTU-6TF + Server RAM. Micron 16 GB RDIMM ECC Reg DDR3-1600 RAM Supermicro X8DTU-6F+ Server RAM.
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