OWC 16GB DDR4 2666MHz CL19 ECC SODIMM 2Rx8 1.2V for DS3018xs DS3622xs+

System-Specific DDR4 ECC SODIMM for Synology NAS

This 16 GB DDR4 2666 MHz CL19 module is built for the Synology DiskStation DS3018xs and DS3622xs+. It delivers ECC error correction and unbuffered operation at 1.2 V in a 260-pin SODIMM form factor. The single 2Rx8 stick installs directly into the compatible NAS chassis. It targets administrators who need a validated capacity increase for these specific platforms.

JEDEC compliance and backward compatibility

The module meets JEDEC PC4-21300 specifications and is ROHS compliant, ensuring a warranty-safe upgrade path. It runs at 2666 MHz but will down-clock to 2400 MHz or 2133 MHz if the system requires it. No additional software or configuration tools are bundled; the benefit comes from the hardware’s standards adherence and tested compatibility alone.

16 GB capacity for multi-tasking headroom

The 16 GB stick expands the NAS memory pool, allowing more concurrent applications, larger file caches and smoother virtual-machine workloads. Performance scales until the platform’s maximum supported memory or slot count is reached. Builders needing higher densities or additional ranks must look beyond this single-module kit.