LENOVO ThinkSystem ST50 V2 2.5' S4520 480GB Read Intensive SATA 6Gb NHS SSD

"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"