
Terramaster F4-424 Pro 32GB Black
Score: 79/100
Synology DS425+
Score: 79/100Rankings

The TerraMaster F4-424 Pro is a 4-bay NAS delivering desktop-grade performance with an Intel i3-N305 CPU, 32 GB DDR5 RAM and dual 2.5 GbE ports. Its lack of 10 GbE networking and limited M.2 bandwidth temper its appeal for high-throughput environments. Ideal for prosumer media enthusiasts and small businesses needing strong transcoding.

The Synology DiskStation DS425+ is a 4-bay NAS featuring an Intel Celeron J4125, 2.5 GbE plus 1 GbE connectivity, and a built-in hardware encryption engine. Its limited RAM capacity and absence of 10 GbE limit high-performance scenarios. Suitable for home offices and small teams needing secure, energy-efficient storage.
| Attribute | ![]() | ![]() |
|---|---|---|
88 TB | 108 TBbest | |
4best | 4best | |
8best | 4 | |
3.8 GHzbest | 2 GHz | |
32 GBbest | 2 GB | |
— | 278 MB/sbest | |
— | 281 MB/sbest | |
2best | 2best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Storage Capacity (TB) | 88 TB | 108 TB |
Performance(4) | ||
CPU Model | Intel Core i3-N305 | Intel Celeron J4125 |
CPU Cores | 8 | 4 |
CPU Clock Speed (GHz) | 3.8 GHz | 2.0 GHz |
Memory (RAM) (GB) | 32 GB | 2 GB |
Build & Design(2) | ||
Weight (kg) | 1.905 kg | 2.18 kg |
Dimensions (H×W×D) (cm) | 15.4×17.9×22.2 cm cm | 19.89 x 16.61 x 22.30 cm cm |

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

Professional reviewers consider the F4-424 Pro the most powerful media-class 4-bay NAS on the market, lauding its desktop-grade i3-N305 CPU, 32 GB DDR5 memory, dual 2.5 GbE, HDMI 2.1 and NVMe caching. They commend its cooling redesign and tool-free bays, but criticize the immature TOS software, absence of 10 GbE/SFP+ and the limited PCIe Gen3 ×2 M.2 bandwidth.
Everyday users love the raw performance for 4K streaming, quiet operation, easy drive swaps and fast initial setup. Common frustrations revolve around the basic TOS app store, occasional firmware bugs, throttled M.2 speeds and the desire for easier RAM upgrades and a built-in battery backup.

TerraMaster is a cost-effective alternative for users focused on raw capacity, while DS425+ is better for those who value a refined OS and low noise.

Professional reviewers and editors consistently praise the DS425+ for its solid performance, fast 2.5 GbE networking, and the polished DSM software that makes setup and management straightforward.
Everyday users generally commend the DS425+ for its solid performance, fast 2.5 GbE networking, and energy-efficient operation.