Synology DS225+ – 2-Bay NAS with 2 × HAT5300 16 TB (32 TB)
📌 General presentation
The Synology DS225+ is a 2-bay NAS bundled with 2 Synology HAT5300 16 TB drives, for a total raw capacity of 32 TB.
Designed for enterprises and mission-critical environments, it combines the Intel Celeron J4125 processor with Enterprise-class HAT5300 drives, delivering extreme endurance (550 TB/year), enterprise-grade reliability and seamless DSM integration.
🔧 Key features
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Processor: Intel Celeron J4125 – 4 cores @ 2.0 GHz (2.7 GHz burst)
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RAM: 2 GB DDR4 (expandable up to 6 GB)
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Storage: 2 × HAT5300 16 TB (32 TB raw)
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Network: 1 × 2.5 GbE + 1 × 1 GbE
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USB ports: 2 × USB 3.2 Gen 1
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NAS Performance: up to ~282 MB/s read, 217 MB/s write
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Drive Performance: up to 270 MB/s sustained
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File system: Btrfs with snapshots and instant restore
🔐 Security & reliability
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Enterprise HAT5300 Synology-certified drives
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Workload rating: 550 TB/year
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MTBF: 2.5 million hours
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Drive warranty: 5 years
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Hardware encryption AES-NI
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Network redundancy (aggregation/failover)
💼 Recommended use cases
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Enterprise-scale backup and mission-critical storage
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Professional private cloud with high capacity
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Massive archiving and database hosting
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4K/8K multimedia storage and professional libraries
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IP surveillance with Surveillance Station (up to 25 cameras)
📦 Box contents
📊 Technical specifications
| Component |
Detail |
| Processor |
Intel Celeron J4125 – 4 cores @ 2.0 GHz (2.7 GHz burst) |
| RAM |
2 GB DDR4 (expandable up to 6 GB) |
| Drive bays |
2 × 3.5″ SATA Enterprise HDD |
| Installed capacity |
32 TB (2 × HAT5300 16 TB) |
| Max NAS capacity |
40 TB (2 × 20 TB) |
| Network |
1 × 2.5 GbE RJ45 + 1 × 1 GbE RJ45 |
| USB ports |
2 × USB 3.2 Gen 1 |
| Supported RAID |
SHR, Basic, JBOD, RAID 0/1 |
| Cooling |
1 × 92 mm fan (~19.6 dB) |
| Power supply |
External 60 W |
| Dimensions / weight |
165 × 108 × 232.2 mm / ~1.3 kg |
✅ Warranty & support