Compatibility Synology DiskStation DS3617xs. Synology DiskStation DS3617xsII. OWC 16GB (2x8GB) DDR4 PC4-21300 2666MHz ECC. COMPATIBLE PART NUMBERS: Synology D4ES01-8G, D4ES02-8G. Capacity 16GB (2x8GB) Form Factor 260-PIN SODIMM.
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