Amazon.com: A-Tech - Memoria RAM de 16 GB para Synology DS DS1621+ DDR4 2666 PC4-21300 ECC SO-DIMM 2Rx8 1.2V - Módulo de actualización de servidor NAS único (repuesto compatible para D4ECSO-2666-16G) :
Flashing blue light after DS220+ memory upgrade: Did I seat the ram properly? : r/synology
Upgrading Synology DS412+ RAM to 4 GB - Jussi Roine
How to upgrade RAM on Synology DiskStation DS220+ - NAS Master