Synology DS425+ – 4-Bay NAS with 4 × SAT5210 1.92 TB (7.68 TB)
📌 General presentation
The Synology DS425+ is a professional 4-bay NAS, delivered with 4 × Synology SAT5210 1.92 TB SSDs, for a total raw capacity of 7.68 TB.
This configuration combines the Intel Celeron J4125 CPU with the speed and endurance of Enterprise SAT5210 SSDs, designed for 24/7 workloads, ensuring reliable high-performance storage for business-critical environments.
🔧 Key features
-
Processor: Intel Celeron J4125 – 4 cores @ 2.0 GHz (2.7 GHz burst)
-
RAM: 2 GB DDR4 (expandable up to 6 GB)
-
Storage: 4 × SAT5210 1.92 TB SSDs (7.68 TB raw)
-
SSD cache: 2 × M.2 NVMe 2280 (Synology only)
-
Network: 1 × RJ45 2.5 GbE + 1 × RJ45 1 GbE (link aggregation & failover)
-
USB: 2 × USB 3.2 Gen 1
🔐 Security & reliability
-
SAT5210 Synology-certified SSDs, with firmware updates integrated via DSM
-
Hardware encryption AES-NI
-
Btrfs file system with snapshots and instant restore
-
High endurance: up to 1.3 DWPD
-
Network redundancy with Link Aggregation & Failover
-
Compatible with UPS: Synology, APC, Eaton
💼 Recommended use cases
-
High-performance transactional databases
-
Business private cloud with Synology Drive, Office, Photos
-
Hosting VMs and containers with demanding I/O
-
Multimedia production (video editing, rendering, design)
-
Critical infrastructures requiring enterprise-grade SSD storage
📦 Box contents
-
1 × Synology DS425+ NAS
-
4 × Synology SAT5210 1.92 TB SSDs (pre-installed)
-
1 × External 90 W PSU + power cord
-
2 × RJ45 Cat5e cables
-
Screw kit
-
Quick installation guide (EN / FR)
📊 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) |
| Installed capacity |
7.68 TB (4 × SAT5210 1.92 TB) |
| SSD cache |
2 × M.2 NVMe 2280 |
| Network |
1 × 2.5 GbE RJ45 + 1 × 1 GbE RJ45 |
| USB ports |
2 × USB 3.2 Gen 1 |
| Supported RAID |
SHR, Basic, JBOD, RAID 0/1/5/6/10 |
| Cooling |
2 × 92 mm fans (~19.8 dB) |
| Power supply |
External 90 W |
| Dimensions / weight |
166 × 199 × 223 mm / ~2.18 kg |
✅ Warranty & support
ℹ️ Compatibility
Delivered with 4 Synology-certified SAT5210 SSDs.
Using non-certified drives may trigger compatibility warnings or restrict features.