Synology SNV5420 1.6TB NAS NVMe M.2 SSD (SYSNV5421600) – PCIe 3.0 x4 NVMe, M.2 2280

The Synology SNV5420 1.6TB (SYSNV5421600) is an M.2 2280 enterprise NVMe SSD with PCIe 3.0 x4 NVMe connectivity. It is built for Synology NAS caching and all-flash storage where consistent latency and data protection matter. It is a practical choice for both new builds and upgrades.

Reliable SSD performance for every day.

Speed Up Your Synology NAS With SSD Caching

Hard drives in a NAS are slow at random access, so many users working at once – or VMs and databases on the NAS – can feel sluggish.

The Synology SNV5420 1.6TB adds a fast NVMe SSD cache in Synology NAS units with M.2 slots, keeping frequently accessed data on flash. It is validated for DSM, so it avoids compatibility warnings and receives firmware updates through Synology.

Predictable Performance Under Load

PCIe 3.0 x4 NVMe connectivity and enterprise firmware keep latency steady for databases, VMs and file services.

Built for Data Protection

Power-loss protection capacitors flush in-flight data to flash if power is lost, protecting array integrity.

Setup Instructions

How to Install the Synology SNV5420 1.6TB

1. Check Synology’s compatibility list for your NAS model.
2. Power down the NAS and install the SSD in an M.2 slot or adapter card.
3. Open DSM Storage Manager and create an SSD cache or storage pool.
4. Apply any available SSD firmware updates in DSM.