Synology DS225+ – 2-Bay NAS (Diskless)
📌 General presentation
The Synology DS225+ is a compact 2-bay NAS designed for home use, remote work, and small businesses. Delivered diskless, it supports 3.5″ SATA HDDs or 2.5″ SATA SSDs, with a maximum raw capacity of 40 TB. Powered by an Intel Celeron J4125 processor and equipped with a 2.5 GbE port, it provides reliable performance for backup, private cloud, and multimedia applications.
🔧 Key features
-
Processor: Intel Celeron J4125 – 4 cores @ 2.0 GHz (2.7 GHz burst)
-
RAM: 2 GB DDR4 (expandable up to 6 GB)
-
Bays: 2 × 3.5″ SATA HDD / 2.5″ SATA SSD (hot-swap)
-
Network: 1 × 2.5 GbE + 1 × 1 GbE (aggregation & failover)
-
Ports: 2 × USB 3.2 Gen 1
🔐 Security & reliability
-
Btrfs file system with snapshots and restore
-
Hardware encryption AES-NI
-
Network redundancy with Link Aggregation & Failover
-
Compatible with Synology-validated drives
💼 Recommended use cases
-
Centralized backup for PCs and servers
-
Personal or business private cloud
-
Multimedia streaming (Plex, Video Station, Audio Station)
-
IP surveillance with Surveillance Station (up to 25 cameras)
-
Online collaboration with Synology Office and Drive
📦 Box contents
-
1 × Synology DS225+ NAS (diskless)
-
1 × External 60 W PSU + power cord
-
2 × RJ45 Cat5e cables
-
Screw kit
-
Quick installation guide
📊 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 HDD / 2.5″ SATA SSD |
| 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 |
| Max capacity | Up to 40 TB (2 × 20 TB) |
✅ Warranty & support
-
Standard warranty: 3 years (extendable to 5 years)
-
Synology professional support via DSM
- Model
- Synology DiskStation DS225+
- CPU type
- Intel® Celeron® J4125
- Number of CPU sockets
- 1
- Number of Cores / Threads
- 4C / 4T
- CPU frequency
- 2.0 GHz - Burst 2.7 Ghz
- Memory capacity
- 2GB
- Memory type
- DDR4 non-ECC
- Number of memory slots
- 1 slot
- Maximum memory capacity
- 6 GB (2 GB + 4 GB)
- Hardware Encryption Engine (AES-NI)
- Oui
- Number of disk bays
- 2
- Maximum number of disk bays with extension
- 2
- M.2 drive slot
- No
- Compatible disc type
- 2.5" SATA SSD
3.5" SATA HDD - Hotswap disk
- Oui
- Installed disk capacity
- 0TB
- Disk model installed
- None
- Disk interface
- Serial ATA 6Gb/s (SATA Revision 3)
- Supported RAID type
- JBOD
RAID 0
RAID 1
SHR - Supported file system
- BTRFS
EXT3
EXT4
FAT
HFS+
NTFS - Number of expansion ports
- None
- Scalable
- Yes
- PCIe Expansion
- None
- Number of USB Ports
- 2 x USB 3.2 Gen 1*
- Number of network ports
- 1 x 1GbE (RJ45) + 1 x 2.5GbE (RJ45)
- Size (Height x Width x Depth)
- 165 mm x 108 mm x 232.7 mm
- Weight
- 1.30 kg
- Sound level
- 19.8 dB(A)
- Mains input voltage
- 100V to 240V AC
- Power frequency
- 50/60Hz, single phase
- Color
- Black
- Brand
- Synology