Synology SAT5221-3840G Enterprise SATA SSD 3.84TB

The Synology SAT5221-3840G is a 3.84TB enterprise-grade SATA III solid-state drive engineered specifically for deployment within Synology all-flash arrays and high-performance NAS platforms. Built on 3D TLC NAND flash architecture, it delivers consistent sequential read performance up to 530 MB/s and sequential write performance up to 500 MB/s, making it well-suited for read-intensive and mixed-workload enterprise storage environments. The drive operates on the standard 2.5-inch SATA 6Gb/s interface and is validated through Synology's rigorous compatibility testing program for use in certified Synology systems.

Designed to meet the demands of enterprise storage infrastructure, the SAT5221-3840G supports advanced data integrity features including end-to-end data path protection and power-loss protection circuitry, safeguarding in-flight data during unexpected power interruptions. The drive is optimized for 24/7 continuous operation and carries a rated endurance of 1.0 DWPD (Drive Writes Per Day) over a five-year operational period, equating to a total bytes written (TBW) rating of 3,504 TBW for this 3.84TB capacity point. These endurance characteristics align it with read-centric and mixed enterprise workloads rather than write-intensive applications.

The SAT5221-3840G integrates seamlessly into Synology FlashStation and FS-series all-flash NAS appliances as well as compatible SA-series storage arrays, benefiting from Synology's unified management through DSM (DiskStation Manager). Its enterprise firmware supports SMART monitoring, error reporting, and predictive failure analysis natively within the Synology ecosystem, enabling proactive storage health management at scale. IT teams deploying this drive in tiered storage or caching architectures gain a solution that balances capacity, endurance, and platform integration in a validated, production-ready form factor.

Ideal for

• Primary storage tier in Synology all-flash NAS arrays for virtualization platforms requiring low-latency, high-throughput block storage
• Read-intensive database hosting where consistent IOPS and low access latency are required across large structured data sets
• SSD caching acceleration layer within Synology hybrid storage systems to improve response times for frequently accessed hot data
• Backup repository target storage in enterprise environments demanding high sequential throughput for rapid backup and restore operations
• Media and content delivery workflows requiring sustained sequential read performance for high-resolution video streaming and editing pipelines
• Enterprise file services consolidation on Synology FS-series platforms serving high-concurrency SMB/NFS workloads across large organizations

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.