
Terramaster F4-424 Pro
Score: 87/100
Synology DS425+
Score: 65/100Rankings

The TerraMaster F4-424 Pro is a high-performance 4-bay NAS aimed at business and media-centric use, featuring an 8-core Intel i3-N305 CPU, 32 GB DDR5 RAM and dual 2.5 GbE ports, supporting 4K 60 fps transcoding and NVMe caching.

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 | ![]() | ![]() |
|---|---|---|
88 TBbest | 80 TB | |
4best | 4best | |
2.5 Gbpsbest | 2.5 Gbpsbest | |
8best | 4 | |
32 GBbest | 2 GB | |
| ↓ lower better | 33 W | 28.25 Wbest |
| ↓ lower better | 21 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 | TOS 5.0 | DSM 7.2+ |
Performance(5) | ||
CPU Model | Intel Core i3-N305 | Intel Celeron J4125 |
CPU Cores | 8 | 4 |
System Memory (GB) | 32 GB | 2 GB |
Power Consumption (Active) (W) | 33 W | 28.25 W |
Noise Level (dB) | 21 dB | 21.6 dB |
Build & Design(3) | ||
Weight (kg) | 1.905 kg | 2.18 kg |
Power Supply Type | Internal | External 90W AC adapter |
Warranty Period (years) | 2 years | 3 years |
Storage & Capacity(3) | ||
Maximum Raw Capacity (TB) | 88 TB | 80 TB |
RAID Support | TRAID, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, Single | SHR, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
Supported Drive Types | 3.5" SATA HDD, 2.5" SATA HDD, SATA SSD | 3.5"/2.5" SATA |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the F4-424 Pro for its unmatched CPU power, abundant DDR5 memory, and advanced media capabilities such as 4K 60 fps transcoding with AV1 support. The dual M.2 slots and TRAID flexibility are highlighted as strong differentiators, while the plastic enclosure, lack of 10 GbE, and limited physical security features are noted as drawbacks.
Everyday users appreciate the fast performance, smooth 4K streaming, and the convenience of NVMe caching, often noting the ample RAM as a major plus. Recurring complaints focus on the non-upgradable memory, the cheap-feel plastic chassis, and the missing front USB and security lock.

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.
“"library-quiet"”

“"2.5GbE support is a game-changer for local backups and media streaming"”

“"Silent operation, ideal for home offices"”


Choose TerraMaster if 10 GbE and higher CPU performance are critical; choose DS425+ for quieter operation and DSM reliability.