Synology D4EC-2666-16G is a 16GB memory module for supported Synology systems. Its DDR4 ECC Unbuffered DIMM design provides additional memory capacity for compatible storage and UC systems.
Synology lists it for selected SA, UC, and RackStation models, including RS4017xs+. For that model, the manufacturer specifies DSM 6.2.2-24922-6 or later for installation. This module is intended for the systems in Synology’s compatibility list.
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