Synology SAT5221 1.92TB 2.5″ SATA Enterprise SSD (SAT5221-1920G) – Power-Loss Protection, 3,500 TBW

Balanced capacity and endurance for all-flash Synology pools.

The Synology SAT5221-1920G is a 1.92TB 2.5-inch SATA enterprise SSD designed for Synology NAS and SAN systems. With power-loss protection, steady-state 500MB/s performance and over 3,500 TBW of endurance, it is well suited to all-flash pools for virtualization, file services and databases.

Moving Business File Services to All-Flash

Hard-drive pools struggle with many concurrent users, VMs and small-file workloads. Moving to flash improves response times but requires drives with enterprise endurance and protection.

The SAT5221-1920G offers a balanced capacity point with over 3,500 TBW of endurance, letting businesses build reliable all-flash Synology pools without excessive drive counts.

Sustained Performance for Shared Workloads

Steady-state 500MB/s throughput and 90K random read IOPS keep shared folders, VMs and databases responsive under continuous load.

Enterprise Protection and Validation

Power-loss protection and Synology validation reduce risk, while DSM monitors lifespan and delivers firmware updates.

Setup Instructions

How to Install the Synology SAT5221-1920G

1. Check that your Synology NAS or SAN model lists the SAT5221 in its compatibility list and update DSM.
2. Mount the SSD in a drive tray using the 2.5-inch screw positions (or tool-less clips where supported).
3. Insert the tray into a free bay; hot-swap is supported on most Synology models.
4. In Storage Manager, create an all-flash storage pool or configure an SSD cache.