DS1522+ compatible RAM upgrade

DS1522+ compatible RAM upgrade

System Memory 4 GB DDR4
Memory Module Pre-installed – Soldered 8 GB (8 GB x 1)
Total Memory Slots 1
Memory Expandable up to 32 GB (16 GB x 2)



DDR4 ECC Unbuffered SODIMM
EAN: 4711174724390

Applied Models:

  • 22 series:DS3622xs+, DS2422+, DS1522+


DDR4 ECC Unbuffered SODIMM
EAN: 4711174724406

Applied Models:

  • 22 series:DS3622xs+, DS2422+, DS1522+




(Arrives with ECC Memory)

DDR4-2466 ECC Unbuffered SO-DIMM 260pin 1.2V D4ES02-8G (ECC) 

D4ES01-16G (ECC)

Crucial ECC 4GB – Buy Here 

Kingston NON-ECC 4GB- Buy Here

Crucial NON-ECC 8GB – Buy Here

Kingston NON-ECC 8GB- Buy Here

Crucial NON-ECC 16GB – Buy Here

Kingston NON-ECC 16GB- Buy Here

Kingston NON-ECC 32GB – Buy Here

Kingston ECC 8GB – Buy Here

Arch ECC 16GB – Buy Here

vColour ECC 32GB- Buy Here



Samsung sticks

Samsung M471A2K43CB1    UK   USA


Crucial RAM alternatives:

The max I have found is 20GB (4GB +16GB) – Or try adding 32GB + 4GB


People said it works: CT16G48FD8266


Crucial 4GB DDR4-2666 SODIMM         UK     USA  
Configuration ID: CT12553660
DDR4 PC4-21300 • CL=19 • Single Ranked • x8 based • Unbuffered • NON-ECC • DDR4-2666 • 1.2V • 512Meg x 64 •

Crucial 8GB DDR4-2666 SODIMM         UK     USA  
Configuration ID: CT12529382
DDR4 PC4-21300 • CL=19 • Single Ranked • x8 based • Unbuffered • NON-ECC • DDR4-2666 • 1.2V • 1024Meg x 64 •


16GB CT16G4SFD8266.    UK     USA  

Crucial CT16G4SFD8266 16 GB (DDR4, 2666 MT/s, PC4-21300, Dual Rank x8, SODIMM, 260-Pin) 



Crucial 16GB DDR4-2666 SODIMM         UK     USA  
Configuration ID: CT12529368
DDR4 PC4-21300 • CL=19 • Dual Ranked • x8 based • Unbuffered • NON-ECC • DDR4-2666 • 1.2V • 2048Meg x 64 •



It work from 4GB to 20GB on ds920+ , maybe it would also work on ds1522+

Crucial 16GB DDR4-2666 SODIMM (CT16G4SFD8266)


I bought this from our local (ala amazon) here in the Philippines.



How to do it:


Add a Memory Module to Synology NAS

Optional Synology memory modules are designed to expand the memory of your Synology NAS. Follow the steps
below to install, check, or remove a memory module on your Synology NAS.
The following table shows the memory configuration for best practice:

To remove the memory module
1 Shut down your Synology NAS. Disconnect all cables from your Synology NAS to prevent possible damage.
2 Remove the hard drive trays from the drive bays. The memory slots are located on the inner right side of your
Synology NAS.


4 Hold the memory module by its edges and remove it from the slot.
5 Insert the drive trays back into the drive bays.
6 Reconnect the cables removed in step 1, then press the power button to turn on your Synology NAS.


To install the memory module
1 Follow step 1 and 2 of the “To remove the memory module” section to shut down your Synology NAS,
disconnect the cables and remove the drive trays.
2 Insert the new memory module into the empty slot:
1 Align the small gap between the gold connectors of the memory module with the notch on the empty slot.
Insert the memory module into the slot. Make sure that the module is properly inserted.
2 Gently push down the memory module until you hear a click.


3 Insert the drive trays back into the drive bays.
4 Reconnect the cables removed in step 1, then press the power button to turn on your Synology NAS.
To make sure your Synology NAS recognizes the new memory capacity
1 Install DiskStation Manager (DSM). Please see “Install DSM on Synology NAS” for more information.
2 Sign into to DSM as admin or a user belonging to the administrators group.
3 Go to Control Panel > Info Center and check Total Physical Memory.
If your Synology NAS does not recognize the memory or does not start up successfully, please make sure that
the memory module is installed correctly.







Feedback from pioneers:

My DS920+ recognized all of this memory and seems to be working fine
Corsair Vengeance Performance Memory Kit 8GB (1x8GB) ddr4 2666MHz CL18 Unbuffered SODIMM CMSX8GX4M1A2666C18


Feedback from David- what didn’t work


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3 thoughts on “DS1522+ compatible RAM upgrade

  1. Hello,
    I already had in my DS1522+ DDR 3200 memory module from factory. I could not find similar memory upgrade on your site, so I bought 16GB ECCC DDR4 3200 DUAL RANK Kingstone KSM32SED8/16HD and it is working well in my DS1522+. Test passed. Anyway thank you for general tips.

  2. Here are few compatible RAM sticks
    could also try this (unlikely will work) https://archmemory.com/32gb-260-pin-ddr4-2666-pc4-21300-ecc-sodimm-2rx8-ram-arch-memory/