Synology DS923+ Dual-Core 4-Bay NAS, 4GB RAM, 32TB (4 x 8TB) of Synology Enterprise Drives, and a 10GbE Adapter Fully Assembled and Tested By CustomTechSales - Newegg.com
Synology: Which RAM to Buy For DS220+ NAS – Marius Hosting
Synology DS120j 1 Bay NAS DiskStation 512MB of DDR3 RAM Dual-Core Enclosure External HDD/SSD Diskless
Synology DS220+ 2 Bay NAS Disk Station 2GB DDR4 RAM Intel Celeron J4025 RJ-45 Port 2x USB Enclosure - AliExpress
16GB Synology DS220+ NAS Unofficial Memory Upgrade Part I - YouTube
Timetec 16GB KIT(2x8GB) Compatible for Synology NAS DiskStation/RackStation DDR3/DDR3L 1600MHz PC3L-12800 1.35V Non-ECC Unbuffered SODIMM RAM (Replacement for Synology RAM1600DDR3L-8GBx2) at Amazon.com
Synology NAS Unofficial Memory Guide 2022/2023 – NAS Compares
Synology DS920+ 4 Bay NAS RAM Expansion Slot - ServeTheHome
Amazon.com: Synology DS923+ 4-Bay Diskstation NAS (AMD Ryzen™ 4 Threads R1600 Dual-Core 4GB Ram 2xRJ-45 1GbE LAN-Port) 16TB Bundle with 4X 4TB WD Red Plus : Electronics