LENOVO ThinkSystem 16GB TruDDR4 3200MHz (2Rx8 1.2V) RDIMM-A for SR635/SR645/SR655/SR665

'TruDDR4 memory uses the highest-quality components sourced from Tier 1 DRAM suppliers and only memory that meets strict requirements is selected.
It is compatibility-tested and tuned to maximize performance and reliability.

TruDDR4 memory has a unique signature programmed into the DIMM, which enables ThinkSystem servers to verify whether the memory installed is qualified and supported.
From a service and support standpoint, TruDDR4 memory automatically assumes the system's warranty, and service and support provided worldwide.

Reference Information'