Synology M2D20 Dual M.2 NVMe SSD Adapter Card

At a Glance

• Adds 2 M.2 NVMe SSD slots
• Supports M.2 2280 and 22110
• PCIe 3.0 x8 interface
• Designed specifically for SSD cache acceleration
• Keeps primary drive bays available for storage
• Compatible with selected current and previous Synology systems
• 5-Year Synology Limited Warranty

Important: M2D20 supports NVMe SSDs, not SATA M.2 SSDs.

Short Description

The Synology M2D20 is a dual-slot M.2 NVMe SSD adapter designed to accelerate compatible Synology NAS systems without consuming their main storage bays.

Its PCIe 3.0 interface and support for two M.2 2280 or 22110 NVMe SSDs make it well suited to latency-sensitive workloads such as virtualisation, file search and indexing.

Why Choose This Synology

Dedicated NVMe Cache Slots

Add two compatible NVMe SSDs specifically for cache acceleration while keeping the NAS's primary drive bays available for storage.

PCIe 3.0 Platform

The newer PCIe 3.0 interface provides a stronger platform for NVMe storage than the older M2D18 design.

Built for Demanding Workloads

NVMe's multi-queue architecture can benefit virtualisation, indexing and other latency-sensitive applications.

Supports 2280 and 22110 SSDs

The card accommodates both M.2 2280 and longer M.2 22110 NVMe devices.

Five-Year Warranty

M2D20 carries Synology's five-year limited hardware warranty.

Best For

• SSD cache acceleration
• Virtualisation
• Business storage
• File indexing
• Search-intensive workloads
• Large shared data sets
• Compatible RackStation systems
• Compatible DiskStation systems

Product Description

The Synology M2D20 is a PCIe 3.0 x8 adapter card designed to add two dedicated M.2 NVMe SSD slots to compatible Synology NAS systems.

It supports M.2 2280 and 22110 NVMe SSDs through two M-key connectors.

Using dedicated M.2 cache allows the primary NAS drive bays to remain available for higher-capacity HDDs or SATA SSDs.

The M2D20 is designed for workloads that benefit from lower random I/O latency, including virtualisation, indexing and frequently accessed shared data.

Key Features

• Dual M.2 NVMe slots
• PCIe 3.0 x8
• M.2 2280 support
• M.2 22110 support
• M-key connectors
• SSD cache acceleration
• Keeps main bays available
• Low-profile and full-height bracket support
• 5-year warranty

What Do I Need With This Adapter?

Required

• Compatible Synology NAS
• Compatible M.2 NVMe SSDs

M.2 SSDs are sold separately.

Compatible Synology Systems

SA Series

• SA6400
• SA3610
• SA3600
• SA3410
• SA3400

26 Series

• RS6426xs+
• RS4826xs+
• RS3626xs
• RS826RP+
• RS826+

25 Series

• RS2825RP+

23 Series

• RS2423RP+II
• RS2423RP+
• RS2423+

22 Series

• RS822RP+
• RS822+
• DS3622xs+
• DS2422+

21 Series

• RS4021xs+
• RS3621xs+
• RS3621RPxs
• RS2821RP+
• RS2421RP+
• RS2421+
• RS1221RP+
• RS1221+

20 Series

• RS820RP+
• RS820+

19 Series

• DS2419+II
• DS2419+
• DS1819+

18 Series

• RS3618xs
• RS2818RP+
• RS2418RP+
• RS2418+
• DS3018xs
• DS1618+

17 Series

• RS18017xs+
• RS4017xs+
• RS3617xs+
• RS3617RPxs
• DS3617xsII
• DS3617xs

DSM Requirement: DSM 6.2.3-25426 or later, with DSM 7.0.1 or later required for selected older models.

Specifications

What’s in the Box

• Synology M2D20 M.2 NVMe SSD Adapter Card × 1

Warranty

5-Year Synology Limited Warranty