Synology DS3617XSII, DS2419+II and DX1215II NAS Drive Uncovered

New Synology DS3617xsII, DS2419+II and DX1215II NAS Hardware Listed

Synology has been in the process of releasing numerous pieces of enterprise solutions in the first half of 2021 (almost exclusively in their rackstation series) and a fair few people have been wondering if/when the Diskstation series will be seeing any new hardware releases before the autumn. Today I wanted to share a little change that was spotted on the official Synology pages in Taiwan that relate to three desktop enclosures from their brand that are seemingly updates on popular 12-bay systems, the DS3617xsII and DS2419+II NAS, as well as the DX1215II expansion chassis.

UPDATE May ’21 – After contacting Synology, they state that the new DS3617xsII, DS2419+II and DX1215II new revisions are centred around a change in the PSU used inside and another small component internally.

However, it is worth highlighting that despite their appearance on the official product pages, that all three are near enough IDENTICAL to the DS3617xs, DS2419+ and DX1215, with minor differences on the product pages when compared with the ‘non II versions’ on other regional pages. The CPU, the Memory type and quantity, the Ports and the storage abilities are exactly the same. Indeed, aside from a small difference surrounding the PCIe compatibility, these systems do seem to be almost indistinguishable, at least on a spec sheet level of hardware.

What Are the Hardware Specifications of the Synology DS2419+II, DS3617xsII and DX1215II NAS Devices?

As mentioned, the hardware specifications and data sheets of the Synology DS3617xs II and DS2419+ II have had little to no change on the previously listed devices (with the 12-Bay expansion DX1215II being even more inscrutable) Both systems use the Intel Xeon and Intel Atom-based processors and DDR4 ECC of their current iteration:


A closer look at the hardware specifications on just the Synology DS3617xsII and DS3617xs NAS below shows that the systems, when compared side by side, are identical in the traditional hardware values:

Synology DS3617xsII NAS Synology DS3617xs NAS
Processor model Intel Xeon D-1527 Intel Xeon D-1527
Number of CPUs 1 1
Processor architecture 64-bit 64-bit
Processor clock 4-core 2.2 (base frequency) / 2.7 (maximum overclocking) GHz
4-core 2.2 (base) / 2.7 (turbo) GHz
Hardware encryption engine (AES-NI)
Pre-installed memory modules 16 GB (8 GB x 2) 16 GB (8 GB x 2)
Total memory slots 4 4
Maximum memory capacity 48 GB (16 GB + 16 GB x 2) 48 GB (16 GB + 16 GB x 2)
Storage device
Number of Disk Slots 12 12
Maximum number of disk bays for installing expansion units 36 (DX1215/DX1215II x 2) 36 (DX1215 x 2)
Disk Support 3.5″ SATA HDD
Maximum single storage capacity* 200 TB (at least 32 GB memory required)
108 TB
200 TB (32 GB memory required)
108 TB
Disk hot swap support
External port
RJ-45 1GbE network port 4 (Support Link Aggregation / Failover)
4 (with Link Aggregation / Failover support)
USB 3.2 Gen 1 port* 2 2
Expansion port 2 2
USB-IF renamed the standard formerly known as USB 3.0 to USB 3.2 Gen 1 in 2019.
PCIe expansion 1 x Gen3 x8 slot (x8 link) 1 x Gen3 x8 slot (x8 link)
File system
Internal disk Btrfs
External disk Btrfs
Remarks exFAT Access needs to be purchased separately from the Kit Center.
exFAT Access is purchased separately in Package Center.
Size (Height X Width X Depth) 270 mm x 300 mm x 340 mm 270 mm x 300 mm x 340 mm
weight 9.8 kg 9.8 kg
other projects
System fan 120 mm x 120 mm x 2 pcs 120 mm x 120 mm x 2 pcs
Fan mode Full speed mode
Low temperature mode
Silent mode
Full-Speed Mode
Cool Mode
Quiet Mode
Replaceable system fan
Automatic power recovery
Noise value* 22.3 dB(A) 22.3 dB(A)
Timer switch
Wake on LAN
Power supply/transformer 550 W 500 W
AC input voltage 100 V to 240 V AC 100 V to 240 V AC
Current frequency 50/60 Hz, single frequency 50/60 Hz, Single Phase
Power consumption power* 108.2 W (Access)
53.4 W (HDD hibernation)
108.2 W (Access)
53.4 W (HDD Hibernation)
British Thermal Unit 368.96 BTU/hr (Access)
182.09 BTU/hr (HDD Hibernation)
368.96 BTU/hr (Access)
182.09 BTU/hr (HDD Hibernation)
Operating temperature 5°C to 40°C (40°F to 104°F) 5°C to 40°C (40°F to 104°F)
Storage temperature -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F)
Relative humidity 5% to 95% RH 5% to 95% RH
Certification body FCC
Warranty 5 years 5 Years
surroundings RoHS compliant RoHS Compliant
Package contents Host X 1
Accessory bag X 1
Power cord X 1
RJ-45 network cable X 2
Quick Installation Guide X 1
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Quick Installation Guide X 1

So, what exactly is going on? Is this more to do with DSM 7 compatibility? Is this perhaps to allow the support of newer generation hardware revisions in PCIe cards for SSD Caching, 10Gbe, Combo cards and 25Gbe Connected NICs?

Are the DS3617xs II, DS2419+ II and DX1215 II New NAS or Just Updated Revisions?

At this early stage, I have to admit that the difference between these systems is unknown to me. I DO think that this is a move by the brand to bring these older generation systems in line with the newer portfolio and aside from likely DSM 7.0 related updates (as DSM 7 could always be launched gradually across regions and having it on the flash module inside is possible), or potential hardware shortages leading to the CPU being potentially changed (but not updated online as of yet) could all be the reason for the DS3617xsII and DS2419+II NAS arriving on the scene, it is still too early to understand what these devices have to offer over the DS3617xs, DS2419+ and DX1215. Below are links to the official pages over at and if think you can spot something I haven’t do let me know in the comments, over on YouTube, or messaging me directly in the NASCompares Advice section. Thanks for reading and I look forward to sharing more on this as we learn more about them.

Synology DS3617xsII NAS –

Synology DS2419+II NAS –

Synology DX1215II NAS Expansion –



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    One thought on “Synology DS3617XSII, DS2419+II and DX1215II NAS Drive Uncovered

    1. Hi Rob
      These II units are only to comply with new CE certification, The only change is the power supply which is now 550W instead of 500W.

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