TerraMaster F4-425 Plus 4-Bay NAS Review — Is It Worth It? [2026]
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TerraMaster F4-425 Plus 4+3 Hybrid NAS
A four-bay NAS that adds three M.2 NVMe slots and two 5GbE ports, aimed at home labs, small offices and anyone outgrowing a basic NAS.
Is the TerraMaster F4-425 Plus worth buying?
Yes, it is the model in this line that makes the most sense for most people who want more than a basic NAS. The reviews back it up: 18 ratings, 14 of them five-star, 3 four-star and 1 three-star. You get NVMe slots for cache or fast pools, dual 5GbE and a Plus-tier CPU, all in the same 4-bay body. Check the variant carefully, though, because the product has two CPU options with different prices and stock.
Same size, much more capable
The Plus keeps the compact four-bay footprint (150 x 181 x 219 mm, 2.9 kg) but adds three M.2 NVMe slots and two 5GbE RJ-45 ports. The spec sheet shows an Intel N150 quad-core with up to 3.6 GHz burst, and 16GB DDR5 SODIMM that goes to 32GB. The listing has two CPU variants: N95 at $509.99 and N150 at $649.99, and at the time of writing the N150 showed as out of stock. The lower variant's subtitle lists 8GB of RAM, so confirm what ships with your option.
What makes it stand out
Dual 5GbE ports
Two 5GbE ports support bonding modes and SMB Multichannel, so you can either aggregate bandwidth or keep one link for management. If you have a multi-gig switch, this is a big step up from the single 2.5GbE port on the F4-425.
Four SATA bays and three M.2 slots
Beyond the four 3.5/2.5-inch bays (up to 120TB raw), three M.2 slots let you run an NVMe cache or a fast SSD volume for VMs and Docker. Reviewers describe it as a hybrid 4+3 box with room to upgrade.
USB 3.2 plus HDMI, 20.9 dB(A)
Ports include three USB-A and one USB-C on the 3.2 spec, plus HDMI. TerraMaster rates noise at 20.9 dB(A) with four drives in standby, so real-world numbers under load will be higher.
Full spec sheet
| Processor | Intel N150 quad-core, up to 3.6 GHz burst (N95 variant also offered) |
| Memory | 16GB DDR5 SODIMM pre-installed, max 32GB (spec sheet) |
| Drive bays | 4 x 3.5"/2.5" SATA + 3 x M.2 |
| Max raw capacity | 120TB (4 x 30TB) |
| Network | 2 x 5GbE RJ-45 |
| USB | 3 x USB 3.2 Type-A + 1 x Type-C |
| Video out | 1 x HDMI |
| Transcoding | H.264 / H.265, up to 4K at 60 fps |
| Size (H x W x D) | 150 x 181 x 219 mm |
| Weight | 2.9 kg net |
| Noise | 20.9 dB(A), 4 drives standby |
| Power supply | 90 W |
| Warranty | 2 years |
Pros & Cons
Pros
- Three M.2 slots on top of four SATA bays
- Dual 5GbE ports with bonding and SMB Multichannel
- Strong review record: 18 reviews, 14 five-star
- Compact 4-bay body with a 90 W supply
- RAM upgradable to 32GB
Cons
- Two CPU variants with different prices, which can confuse buyers
- The N150 option showed out of stock when we checked
- $509.99 to $649.99 is a real jump over the base F4-425
- Noise figure is measured with drives in standby
- Spec sheet and variant subtitles disagree on RAM, so verify before ordering
Answers before you buy
What is different from the F4-425?
Which CPU variant should I buy?
Can I use the M.2 slots as storage?
How are the reviews?
What is the warranty?
The one most people should buy
The F4-425 Plus is the sweet spot of TerraMaster's newer lineup: fast networking, NVMe slots and a review record that backs it up. Pick the variant that fits your budget and stock, and it will not feel cramped for years.
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