Synology 960GB SAT5221 SATA III 2.5″ Internal SSD – SAT5221-960G
Description
The Synology SAT5221-960G is an enterprise-grade 2.5″ SATA III 6 Gb/s SSD delivering 960 GB of high-performance, low-latency storage optimized for Synology NAS environments. Built for mixed and intensive 24/7 workloads, it integrates seamlessly with DiskStation Manager for streamlined management and firmware updates.
Performance Specifications
| Metric | Specification |
|---|---|
| Sequential Read (128 KB, QD32) | 500 MB/s |
| Sequential Write (128 KB, QD32) | 500 MB/s |
| Random Read (4 KB, QD32) | 90 000 IOPS |
| Random Write (4 KB, QD32) | 30 000 IOPS |
Measured in SNIA-compliant steady-state environments to ensure consistent performance under sustained workloads.
Endurance & Reliability
| Attribute | Specification |
|---|---|
| Endurance (TBW) | 1 700 TB written |
| MTBF | 1.5 million hours |
| UBER | < 1 sector per 10^17 bits read |
| Power-Loss Protection | Onboard capacitors flush in-flight data |
| Warranty | 5 years (or until TBW reached) |
Designed for continuous operation, the SAT5221-960G features enterprise-grade endurance and built-in power-loss protection to safeguard data integrity.
Power & Thermal
| Condition | Power Consumption |
|---|---|
| Active Read (Typ.) | 3.5 W |
| Active Write (Typ.) | 4 W |
| Idle | 1.2 W |
| Operating Temperature | 0 °C to 70 °C |
| Storage Temperature | –40 °C to 85 °C |
Thermal characteristics support high-density deployments while maintaining energy efficiency.
Physical & Compatibility
| Attribute | Specification |
|---|---|
| Form Factor | 2.5″ × 7 mm |
| Interface | SATA III 6 Gb/s |
| Dimensions (L×W×H) | 100 × 69.85 × 7 mm |
| Weight | ~ 45 g |
| Compatible Series | SAT5200, SAT5221, SAT5222, SAT5230 series |
| Validation | Fully tested with DiskStation Manager |
Plug-and-play validated for seamless integration and one-click firmware updates via DSM.
Key Features
- Native DSM Integration: Automatic firmware updates and health monitoring
- High & Consistent Throughput: 500 MB/s sequential; 90 000/30 000 IOPS random
- Enterprise Endurance: 1 700 TBW with 1.5 M-hour MTBF
- Data Protection: End-to-end error correction and power-loss protection
- Energy Efficient: Low idle power draw prolongs SSD lifespan
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