Synology NAS RAM & SSD Upgrade Guide (2026)
Synology NAS systems are among the most upgradeable network-attached storage devices on the market. Unlike some competitors, Synology designs most models with user-accessible RAM slots and NVMe cache bays, making it possible to boost performance for significantly less than buying a new unit.
This guide covers RAM and SSD compatibility for Synology’s most popular models, from compact 2-bay units to enterprise-grade rackmount systems.
Synology NAS Compatibility Matrix
The table below shows RAM and SSD cache support for the most common Synology models:
Related Synology Upgrade Guides
- Synology RS4021xs+
- Synology RS2423RP+
- Synology RS3621xs+
- Synology RS2423+
- Synology FlashStation FS6400
- Synology Upgrade Guide
Not sure what fits? Use our free Compatibility Checker covering 3,195+ models.
Helpful Guides
Recommended NAS Hard Drives
As an Amazon Associate we earn from qualifying purchases. Prices & availability shown on Amazon.
