Synology DS218 or DS218+ or the DS218Play

Your question:

I am seeing so much about the DS218+ and the DS218Play but nothing about the DS218. I have seen the specs for the DS218 are just about the same as the DS218Play but with 2GB memory and a couple other small things and a few features the DS218+ has. And the DS218 appears to have the same case as the DS218+ Minus the eSATA port on the rear. The DS218 is priced between the DS218play & the DS218+. I believe the DS218play will do what I need it to but for the small difference in price would it be worth going one step up to the DS218 for the extra memory and hot-swap drives, etc?


The answer:

DS218 and DS218play is very much the same NAS. Before spending extra be sure you will really need this extra memory, hot-swap trays or one-touch backup button.

In a home use probably you will be fine with DS218play instead of DS218. If there will be 5+ people using it – consider DS218 or DS218+ .


DS218+ will be useful if you consider using it as a Plex server. If not, there is no need for this extra performance. Unless you will have many people simultaneously and continuously accessing and using this device.


The price difference between DS218play , DS218 and DS218+



What each of them have different?

DS218play – Good for multimedia

DS218 –        Good for multimedia and easy backup functions

DS218+ –      Good for multimedia and easy backup functions and is upgradable

DS218play , DS218 and DS218+ Specs Compared

DS218 DS218+ DS218play
CPU Model Realtek RTD1296 Intel Celeron J3355 Realtek RTD1296
CPU Architecture 64-bit 64-bit 64-bit
CPU Frequency Quad Core 1.4 GHz Dual Core 2.0 burst up to 2.5 GHz Quad Core 1.4 GHz
Hardware Encryption Engine Yes AES-NI Yes
Hardware Transcoding Engine 10-bit H.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 60 H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30 10-bit H.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 60
System Memory 2 GB DDR4 2 GB DDR3L – upgradable 1 GB DDR4

What does Copy Button do?

You can actually configure what will copy button on the front panel do. You can set it to automatically copy all data from an external hard drive to your NAS or copy a certain folder from your NAS to attached hard drive. This can speed up the time when you are in a rush. There is no need to use laptop an manually drag and drop folder you wanna copy to/from external drive.

Which ones are expandable?

The only NAS from these three which can be upgraded is DS218+ You can add expansion unit for 5 extra hard drives (as a separate volume) and add bigger size RAM sticks.

RAM upgrade options

Synology DDR3L RAM D3NS1866L-4G 4GB SODIMM Memory for 18+ range - see list 4GB


Max 4GB +2GB = TOTAL 8GB

Crucial Compatible RAM Upgrade 




CPU can only address 8GB per channel (slot). So max 16GB (2x8GB).


Expansion unit:


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