Synology RAM DDR4-2666 Non-ECC SO-DIMM 4GB (D4NESO-2666-4G)

No issues whatsoever. Installed in a Synology DS920+

update: dec’21:

Easy installation

The RAM chips that are actually soldered to the board are Samsung. Go with an 8GB stick of Samsung for compatibility and a lower cost. Get the M471A1K43CB1-CTD. Works great on my DS220+ and my DS720+. It tests out with Synology Assistant memory test, plus, theres no errors/nuisance warnings that youre not using a Synology branded stick of memory.

Worked perfectly from the outset. I really dont stress my NAS but I wanted to ensure the best performance from the start. Got the Synology extended warranty so wanted to get a factory approved part.

As stated, nothing more to add.

Only purchased to maintain my 920+ warranty even though any other 4gb stick would work fine. Should be 50% of its current cost ($100~).

Good, 4 times costlier than Similar product of same quality

Synology nas use.

LA MEMORIA RAM DE 4GB, SE NOTA AL INCORPORLA EN LA NAS, FUE FACIL DE INSTALAR Y LOS ARCHIVOS PESADOS NO SE NOTAN AL PASAR DE UNA CARPETA A OTRA O AL VER UN VIDEO O PRESENTACION.