parts-quick 4GB Memory for Synology DS220+ Compatible DDR4 SODIMM 2666MHz RAM at Amazon.com
Synology DS923+ Dual-Core 4-Bay NAS with 16GB RAM and 32TB (4 x 8TB) of Synology Plus Drives and 800GB (2 x 400GB) Synology Cache Fully Assembled and Tested By CustomTechSales - Newegg.com
How do you choose RAM for your Synology NAS? - Coolblue - anything for a smile
Synology NAS Memory Upgrade Guide – 2023 Edition – NAS Compares
4GB D4NESO-2666-4G DDR4 260-Pin Sodimm RAM | Memory for Synology