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Memory

DSM runs more containers, virtual machines and cache with more memory, and Synology only supports its own modules. Each listing names the NAS models it fits; if yours is not there, ask us before you order.

Memory · 22 products

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Match the module to the model

Synology publishes exactly which modules each NAS accepts, and DSM warns when it sees anything else. The module code tells you the type: D4ES01 and D4ES02 are DDR4 ECC SO-DIMMs for Plus and xs+ models, D4EC-2666 and D4ER02 are ECC UDIMM and RDIMM for RackStation xs+ and FlashStation, D4NESO and D4NS are non-ECC SO-DIMM for Value models. Every listing here names the compatible models; if yours is not listed, ask before ordering.

Why upgrade

More memory means more containers and virtual machines, a bigger file cache and smoother Synology Photos indexing. Most Plus models ship with 2 to 8GB and accept 16 to 32GB.