General

Capacity

400 GB

Form Factor

M.2 2280

Interface

NVMe PCIe 3.0 x4

Performance

Sustained Sequential read (128 KB, QD32)

3,000 MB/s

Sustained Sequential write (128 KB, QD32)

650 MB/s

Sustained Random Read (4KB, QD256)

225,000 IOPS

Sustained Random Write (4KB, QD256)

45,000 IOPS

Notes

Performance specifications represent single-unit SSD performance results obtained from Synology's testing environment; actual performance may vary according to the host system's hardware and software setup.
The specifications have undergone thorough review and verification by Synology to ensure they meet the performance demands and compatibility standard of each Synology system while providing high reliability.
All performance measurements refer to sustained performance achieved in a steady state, as defined by test specifications in accordance with the Storage Networking Industry Association (SNIA).
Synology reserves the right to replace SSD modules with components from different suppliers based on product life cycle status and supply availability. All replacements are rigorously tested to the same standards to ensure equivalent compatibility, stability, and performance.

Endurance and Reliability

Terabytes Written (TBW)*

>700 TB

Power Loss Protection

✓

Warranty*

5 Years

Notes

The TBW specifications denote the baseline endurance levels for Synology SSDs and are calculated using the JESD219A enterprise workload.
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

Power Consumption

Active Read (Typ.)

5 W

Active Write (Typ.)

5.5 W

Idle

2.5 W

Notes

Power consumption may differ according to configurations and platforms.

Temperature

Operating Temperature

Storage Temperature

-40°C to 85°C (-40°F to 185°F)

Compatibility

Applied Models

M.2 SSD via Internal slot
M.2 SSD via E10M20-T1
M.2 SSD via M2D20
M.2 SSD via M2D18