Synology M2D20 M.2 Adapter Card

BH #SYM2D20 • MFR #M2D20
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Synology M2D20 M.2 Adapter Card
Key Features
  • For Select Synology NAS Units
  • Create an SSD Cache via PCIe
  • Dual M.2 2280/22110 Slots
  • PCIe 3.0 x8 Host Bus Interface
Designed for select models of their NAS arrays, the M2D20 M.2 Adapter Card from Synology will supercharge the I/O performance of your NAS. The multi-queue capability of NVMe SSDs benefits latency-sensitive applications such as photo indexing, file search, and virtualization deployments.
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Synology M2D20 Overview

Designed for select models of their NAS arrays, the M2D20 M.2 Adapter Card from Synology will supercharge the I/O performance of your NAS. The multi-queue capability of NVMe SSDs benefits latency-sensitive applications such as photo indexing, file search, and virtualization deployments.

Built as a PCIe card with a low profile and full height form factor, the M2D20 has M.2 slots, each of which supports an M.2 2280 or 22110 SSD. Another advantage of creating an SSD cache via a PCIe card, as compared to using your array's 2.5" drive bays, is that the 2.5" bays on your array are still available for file storage. The M2D20 interfaces with your compatible NAS using a PCIe 3.0 x8 host bus interface and uses a PCIe NVMe storage interface.

General Features
NVMe Enabled
Accelerate random I/O performance with the dual M.2 2280/22110 NVMe SSD slots.
Dedicated Cache Slots
Free up primary drive bays for data storage. With the M2D20, you won't need to use 2.5" drive bays to create an SSD cache, since it installs into a PCIe slot.
Matches with Synology SNV3000 Series NVMe SSDs
Install Synology SNV3000 Series NVMe SSDs on the M2D20 adapter card for fast and streamlined cache acceleration, and take full advantage of Synology SSD's enterprise-grade endurance, performance, and reliability with your Synology NAS.
Easy IT Upgrade
Upgrade your existing storage infrastructure efficiently.
Compatibility
SA Series
SA6400, SA3610, SA3600, SA3410, and SA3400
23 Series
RS2423RP+ and RS2423+
22 Series
RS822RP+, RS822+, DS3622xs+, and DS2422+
21 Series
RS4021xs+, RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+, RS1221RP+, and RS1221+
20 Series
RS820RP+ and RS820+
19 Series
DS2419+II, DS2419+, and DS1819+
18 Series
RS3618xs, RS2818RP+, RS2418RP+, RS2418+, DS3018xs, and DS1618+
17 Series
RS18017xs+, RS4017xs+, RS3617xs+, RS3617RPxs, DS3617xsII, and DS3617xs
UPC: 846504003907

Synology M2D20 Specs

Key Specs
System Connection
PCI Express 3.0 x8
M.2 Slots
22110
RAID Support
No
System Connection
PCI Express 3.0 x8
M.2 Slots
2x M.2 (M Key) 22110/2280
RAID Support
No
OS Compatibility
Synology
Operating Conditions
32 to 104°F / 0 to 40°C at 5 to 95% Humidity
Storage Conditions
-6 to 140°F / -21 to 60°C
Cooling
No
Form Factor
Full Height or Low Profile
Height
2.82" / 71.75 mm
Length
7.2" / 181.9 mm
Width
0.6" / 15.8 mm
Packaging Info
Package Weight
0.73 lb
Box Dimensions (LxWxH)
10.3 x 7.2 x 1.8"

Synology M2D20 Reviews

Does the job

By Christopher
Rated 5 out of 5
Date: 2025-03-20

Very helpful

Improves IO Performance

By Jacques
Rated 5 out of 5
Date: 2022-11-09

This card was easy to install and worked perfectly with the WD Blue SSDs that I ordered along with it. The hardware is top notch quality. My only complaint is the documentation; it explains how to put it together but there is no explanation on how to set up the SSD cache in the Synology Storage Manager. I found some YouTube videos to get it set up. I did get some warning about the SSDs not being Synology but it did not prevent me from getting the cache up and running. The system seems snappier, the docker containers I use and even plex seem to load files faster.

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