Synology DS923+ Dual-Core 4-Bay NAS, 16GB RAM, 16TB (4 x 4TB) of Synology Enterprise Drives, and a 10GbE Adapter Fully Assembled and Tested By CustomTechSales - Newegg.com
A-Tech 16GB DDR4 2400 MHz ECC SO-DIMM for Synology DS2419+ NAS Server Memory RAM | eBay
CMS 16GB (2X8GB) DDR3 14900 1866MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Synology® DiskStation DS918+ - A5 at Amazon.com
A-Tech 16GB RAM Replacement for Synology D4ECSO-2666-16G & D4ES01-16G | DDR4 2666 MHz PC4-21300 SODIMM ECC Unbuffered Memory Compatible for NAS & NVR Servers at Amazon.com