Synology 16TB HAS5300 SAS-3 3.5″ Internal Enterprise HDD – HAS5300-16T
Description
The Synology HAS5300-16T is a 16 TB, 3.5″ SAS-3 (12 Gb/s) enterprise hard drive tailored for nonstop, high-availability NAS and SAN deployments. It combines Synology-tuned firmware, one-click DSM integration, and rigorous validation testing to deliver class-leading reliability and performance.
Hardware Specifications
| Specification | Details |
|---|---|
| Capacity | 16 TB |
| Form Factor | 3.5″ |
| Interface | SAS-3 (12 Gb/s) |
| Drive Design | Air-cooled |
| Rotational Speed | 7 200 RPM |
| Cache Buffer | 512 MB |
| Sector Format | 512e |
All hardware specs from Synology HAS5300 Data Sheet.
Performance
| Metric | Specification |
|---|---|
| Maximum Sustained Transfer (Typ.) | 275 MB/s |
Measured in SNIA-compliant steady-state tests on Synology platforms.
Reliability & Data Integrity
| Attribute | Specification |
|---|---|
| Mean Time Between Failures (MTBF) | 2.5 million hours |
| Workload Rating | 550 TB per year |
| Validation Testing | Over 200 000 hours on Synology hardware |
| Persistent Write Cache | Yes |
| Power-Loss Protection | Onboard capacitors flush in-flight data |
Enterprise-grade endurance and data safeguards ensure continuous operation.
Power & Thermal
| Attribute | Specification |
|---|---|
| Supply Voltage | 12 V DC |
| Active Idle Power (Typ.) | 4.46 W |
Typical power figures reported by Synology hardware tests.
Environmental & Certification
| Attribute | Specification |
|---|---|
| Operating Temperature | 5 °C to 60 °C |
| Non-Operating Temperature | –40 °C to 70 °C |
| Operating Humidity | 5 % to 95 % RH (non-condensing) |
| Certifications | CE, RCM, BSMI, KC, EAC, UL, TUV, ICES, UKCA, RoHS |
Meets global environmental and safety standards.
Physical Dimensions
| Dimension | Specification |
|---|---|
| L × W × H | 147 × 101.85 × 26.1 mm |
| Weight | 720 g |
Key Features
- Enterprise Durability: Rated 2.5 M-hour MTBF and 550 TB/year workload for 24/7 operation.
- Firmware-Optimized Performance: Up to 27 % faster RAID array rebuild speeds.
- Seamless DSM Integration: One-click firmware updates and real-time health monitoring.
- Data Integrity Safeguards: Persistent write cache and power-loss protection prevent data corruption.
- Rigorous Validation: Over 200 000 hours of stress testing on Synology hardware guarantee interoperability.
Ideal Use Cases
- Mission-critical NAS and SAN storage requiring high availability
- Large-scale file sharing, backup, and archival repositories
- Database and virtualization workloads demanding sustained sequential throughput
- Hybrid-cloud environments seeking deep DSM management integration





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