Reviewing the Synology DS1817+ with M2D17

The M2D17 dual M.2 SSD PCIe adapter

The Synology M2D17 dual M.2 SSD adapter is compatible with the DS1817+. It allows you to add two M.2 SSD to the DS1817+ without sacrificing any disk bays for SSD cache!

The M2D17 is a M.2 SSD adapter that allows you to add SSD cache capability to your Synology NAS without sacrificing any of the existing drive bays. In the past, you will need to allocate two drive bays if you need read-write cache. For a 5-bay NAS, you will be left with 3 bays for your main storage.

The M2D17 supports two 2242/ 2260/ 2280 form-factor M.2 SSDs from various vendors. Do check out the hardware compatibility list for the supported make and model.

Synology M2D17 Technical Specifications
Applied Models DS1517+
DS1817+
PCIe Interface PCIe 2.0 x8
Supported Form Factor 2242, 2260, 2280
Bracket Height Low-profile
Warranty 3 years

The package comes with the M2D17 adapter, a pack of screws and a pack of spacers.

Within the Synology M2D17 package, you will find:

  • The low-profile M2D17 M.2 SSD PCIe adapter;
  • A pack of screws; and
  • A pack of spacers

On the right are two slots for 2242/ 2260/ 2280 form-factor M.2 SSDs. Do note that M.2 NVMe/AHCI PCIe SSD is not supported.

4 thoughts on “Reviewing the Synology DS1817+ with M2D17

  • July 28, 2017 at 11:16 am
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    drool ~~~~

  • August 31, 2017 at 4:23 am
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    i’ve been looking at upgraded NAS offerings. this seems like a great choice, my workflows are mostly IOPS limited, so this would represent a significant increase in performance and a significant decrease in keyboard smashing stress.

  • January 10, 2018 at 10:50 am
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    Good review. Do you know if it possible to use an M.2 SSD installed in the M2D17 card as an extra storage device? Such as using it to run all your app’s etc (docker, virtual machines…) instead of running them off the array. I currently use slot 8 with an SSD installed for this purpose

  • January 10, 2018 at 12:32 pm
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    Hi Darren,

    Unfortunately, we can’t use the SSD on the M2D17 as storage volume. It will just appear as SSD cache.

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