RS818+ and RS818RP+ RAM compatibility -memory expansion – NAS Compares
Synology RS1619xs+ RackStation with 64GB RAM and 64TB (4 x 16TB) of HAT5300 Synology Enterprise Drives Fully Assembled and Tested By CustomTechSales - Newegg.com
A-Tech 16GB Kit (2x8GB) RAM Compatible for Synology NAS RackStation RS1219+, RS818RP+, RS818+ | DDR3/DDR3L 1600MHz PC3L-12800 Non-ECC Unbuffered SODIMM Memory (Replacement for RAM1600DDR3L-8GBx2) at Amazon.com
RS818+ and RS818RP+ RAM compatibility -memory expansion – NAS Compares