We no longer carry Synology - DDR4 - module - 16 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - un (6018621), but we found this replacement for you.
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Increase your server's multitasking abilities with the Synology Server Memory. This 16 GB RAM is compatible with motherboards having 288-pin DIMM slots and a DDR4-enabled chipset. It offers a memory speed of 2666 MHz for quick transfer of data. This server memory is compatible with the Synology SA3200D, RackStation RS1619xs+, RS2418+, RS2418RP+ and other select rack stations.