Synology DS223j 2-bay
Score: 70/100
Synology DS425+
Score: 65/100Rankings
The DS223j is a compact, diskless two-bay NAS that delivers the full DSM experience, RAID 1 redundancy and low power draw. It's ideal for basic file storage and backup, though its single-gigabit port and limited RAM keep it from handling demanding media tasks.
The DS425+ is a 4-bay NAS with 2.5 GbE networking and dual M.2 slots, offering quiet operation and DSM 7.2+ features, aimed at home offices and small businesses.
| Attribute | | |
|---|---|---|
— | 80 TBbest | |
2 | 4best | |
1 Gbps | 2.5 Gbpsbest | |
4best | 4best | |
1 GB | 2 GBbest | |
| ↓ lower better | 16.31 Wbest | 28.25 W |
| ↓ lower better | 18.2 dBbest | 21.6 dB |
2 years | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Security(1) | ||
OS Compatibility | DSM | DSM 7.2+ |
Performance(5) | ||
CPU Model | Realtek RTD1619B | Intel Celeron J4125 |
System Memory (GB) | 1 GB | 2 GB |
Ethernet Speed (Gbps) | 1 Gbps | 2.5 Gbps |
Power Consumption (Active) (W) | 16.31 W | 28.25 W |
Noise Level (dB) | 18.2 dB | 21.6 dB |
Build & Design(3) | ||
Weight (kg) | 0.87 kg | 2.18 kg |
Power Supply Type | 60W AC adapter | External 90W AC adapter |
Warranty Period (years) | 2 years | 3 years |
Storage & Capacity(3) | ||
Drive Bays | 2 | 4 |
RAID Support | RAID 0,1,Basic,Hybrid RAID,JBOD | SHR, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
Supported Drive Types | 3.5" SATA HDD,2.5" SATA SSD | 3.5"/2.5" SATA |
Products in the top-left offer the best value (high score, low price).
Professional reviewers view the DS223j as a solid successor to the DS220j, highlighting the faster Realtek quad-core CPU and polished DSM experience, but note the lack of tool-less drive bays and limited media-streaming capability.
Everyday users appreciate the straightforward setup, reliable file access, and the ability to replace cloud storage costs with a one-time purchase, while recurring complaints focus on the noisy fan during spin-down, limited RAM, and difficulties with H.265 video playback.
Professional reviewers consider the DS425+ an evolutionary update that modernizes networking with 2.5 GbE and adds dual M.2 slots, but they caution that the aging J4125 processor and limited memory cap its performance for demanding virtualization or transcoding tasks.
Everyday users appreciate the silent, "library-quiet" operation and the speed boost from 2.5 GbE, finding the setup straightforward and the DSM interface user-friendly, while noting the lack of 10 GbE and occasional instability with the USB-C expansion.
“airplane noise”
“Easy setup and migration”
“"library-quiet"”
