CMS 32GB (2X16GB) DDR4 17000 2133MHz ECC Non Registered SODIMM Memory Ram Upgrade Compatible with Synology® DiskStation DS1819+ - D42 at Amazon.com
Synology DS1621+ DiskStation with 32GB RAM, an E10G18-T2 10GbE Card and 72TB (6 x 12TB) of Synology Enterprise HAT5300 Drives Fully Assembled and Tested By CustomTechSales Desktop NAS - Newegg.com