Synology D4EU01-4G 4 GB DDR4 NAS Memory Module

Synology 4 GB DDR4 ECC UDIMM

This Synology D4EU01-4G module adds four gigabytes of DDR4 ECC memory to compatible desktop NAS units. It is built for owners of select Synology systems who need to expand installed RAM for heavier workloads. The unbuffered DIMM format fits supported bays without extra adapters. Condition is new and ready for installation.

Suitable for Synology NAS owners adding RAM

This upgrade suits administrators running virtual machines, container workloads or large file caches on supported Synology NAS models. The ECC design helps maintain data integrity during sustained operation. Builders whose chassis requires registered DIMMs or a different memory generation should look at other modules. Compatibility is limited to the vendor-qualified device list.

4 GB DDR4 capacity decides fit

The single specification that determines suitability is the four-gigabyte DDR4 ECC unbuffered capacity. Systems needing larger individual modules or a different memory technology cannot use this part. Verify the NAS model against the vendor compatibility list before purchase. The module delivers exactly the stated capacity and type.