TERRAMASTER F4-425 Plus NAS Storage - 4Bay Intel N150 Quad-Core CPU, 16GB RAM DDR5, 5GbE LAN x 2, M.2 Slot x 3, Network Attached Storage for Teamwork, Multimedia Server (Diskless)
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AI Verdict
This 4-bay NAS with an Intel N150 CPU, 16GB DDR5 RAM, and dual 5GbE ports is for power users and small businesses needing fast data access and 4K/8K transcoding.
This NAS is a strong fit for users who need significant processing power, high-speed networking, and flexible storage options. The Intel N150 CPU with 16GB DDR5 RAM and dual 5GbE ports provides a robust platform for demanding tasks like 4K/8K media transcoding and multi-user access, making it suitable for small businesses and media professionals. Its triple M.2 slots also offer excellent caching or dedicated fast storage for specific workloads.
If you need even higher network throughput for extremely large file transfers, look for NAS units with 10GbE LAN ports, though these will be in a higher price bracket.
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Pros
- Achieves up to 1020 MB/s sequential read/write speeds through dual 5GbE ports with link aggregation.
- Features an Intel N150 Quad-Core CPU (up to 3.6GHz) and 16GB DDR5 memory, providing a performance upgrade over older Celeron chips.
- Includes three M.2 SSD slots for cache acceleration or independent storage pools, supporting up to 8TB each.
- Supports 4K/8K video transcoding for Plex, Emby, and Jellyfin due to its integrated Intel UHD Graphics and AV1 decoding.
- Offers massive storage capacity up to 144TB (4x HDD + 3x M.2 SSD) with TRAID data protection.
- Constructed with a 4mm aluminum shell and cooled by a 120mm rear fan, contributing to quiet operation.
Cons
- M.2 SSD slots are limited to PCIe 3.0 x1 lanes, preventing full utilization of high-end NVMe drives.
- The HDMI port is currently only functional for terminal access, not for dashboard display or media playback.
- TOS 6 software, while functional, has been reported to have 'rough edges' and a less beginner-friendly setup experience.
- TNAS Mobile app requires disabling 'Security Isolation Mode' for mobile access, which could expose the NAS to external risks.
- Users report a lack of community and official staff support on forums.
Dimension Scores
Achieves up to 1020 MB/s sequential read/write speeds with dual 5GbE ports and link aggregation, which is above average for its price band.
Features TRAID technology for data protection, TFSS snapshots, HyperLock-WORM, and a durable 4mm aluminum-alloy chassis, suggesting a focus on data integrity and physical robustness.
Supports a massive 144TB total capacity (4x HDD + 3x M.2 SSD), which is excellent for its category and price point.
Offers broad support for various applications like Docker, VMs, Plex, Emby, Jellyfin, and integrates with cloud services, indicating strong software compatibility.
Best For
- Video editors and creative teams requiring fast data transfer speeds for large files.
- Small business offices needing centralized data storage with advanced backup and collaboration tools.
- Home users and 'geek enthusiasts' running Docker, Virtual Machines, or media servers with 4K/8K transcoding.
Not Recommended For
- Beginners seeking a plug-and-play NAS experience without needing to troubleshoot or learn a new OS.
- Users who prioritize extensive community support and polished software over raw hardware specifications.
- Those needing to connect a display directly to the NAS for media playback or a graphical interface.
Watch Out For
- The M.2 SSD slots are limited to PCIe 3.0 x1, meaning you won't get full speed from top-tier NVMe drives, with speeds capping out just under 1,000 MB/s.
- Accessing the NAS via the TNAS Mobile app requires disabling 'Security Isolation Mode', which a user reported as a security concern.
- The HDMI port is only for terminal access; don't expect a graphical interface or media output through it.
- The setup process for TOS 6 has been described as less 'beginner friendly' and having 'rough edges'.
- Community and official support for TerraMaster products on forums is reportedly lacking.
Full Specifications
| ASIN | B0FLHTF2PQ |
| Size | 4Bay, F4-425 Plus |
| Brand | TERRAMASTER |
| Color | Silver |
| Material | Aluminum |
| Item Weight | 6.38 pounds |
| Manufacturer | TERRAMASTER |
| Item model number | F4-425 Plus |
| Product Dimensions | 8.62 x 7.13 x 5.91 inches |
What Buyers Say
Early reports suggest this NAS is a performance powerhouse, especially for its price, with the Intel N150 CPU being a significant upgrade over previous generations. Users are pointing out the dual 5GbE ports as a major win for fast file transfers, though the M.2 slots are limited by PCIe 3.0 x1 lanes. The aluminum build is a plus for durability and quiet operation, but the software experience, particularly for new users, might need some patience.
“Man, this thing flies for the money, but setting up some of the apps felt like I was back in college debugging code. Still, the 5GbE is legit fast for my video files.”
Common Praise
- The Intel N150 CPU provides a noticeable performance boost compared to older NAS processors, especially for media tasks.
- Dual 5GbE ports deliver very fast network speeds, reaching up to 1020 MB/s with link aggregation.
- The inclusion of three M.2 SSD slots offers flexible options for caching or creating fast storage pools.
- Capable of 4K/8K video transcoding for media servers like Plex and Jellyfin.
- The chassis is constructed from a thick 4mm aluminum shell, giving it a robust feel.
- Operates quietly due to its low-power CPU and 120mm rear fan.
Common Complaints
- M.2 SSD slots are limited to PCIe 3.0 x1, which restricts the full potential of high-speed NVMe drives.
- The HDMI port is only for terminal access, not for a graphical user interface or media output.
- TOS 6 software has 'rough edges' and a less intuitive setup process for new users.
- Mobile access via TNAS Mobile might require disabling 'Security Isolation Mode', raising security concerns.
- There's a perceived lack of active community and official support on forums.
Ownership Tips
- The N150 CPU runs cool and quiet, even under load, thanks to its 6W TDP and large fan.
- The Direct Data Drive Mounting feature actually works, saving a ton of time when migrating existing drives.
- While the M.2 slots are limited, using them for a fast cache dramatically speeds up frequently accessed files on HDDs.
- The physical build quality with the aluminum shell feels premium and durable.
- Expect to spend some time learning TOS 6 if you're coming from a more user-friendly NAS OS, but the capabilities are there.
Frequently Asked Questions
What kind of drives does the F4-425 Plus support?
It supports four 3.5-inch or 2.5-inch SATA HDDs/SSDs and three M.2 2280 NVMe SSDs. Each HDD bay can hold up to 30TB, for a total of 144TB with M.2 SSDs.
Can I upgrade the RAM?
The F4-425 Plus comes with 16GB DDR5 memory, and some sources indicate it is upgradeable to 32GB, though it uses non-ECC SODIMM.
What operating system does it run?
It runs TerraMaster's proprietary operating system, TOS 6.
Is it suitable for Plex media server?
Yes, the Intel N150 CPU with integrated UHD Graphics supports 4K/8K hardware transcoding, making it suitable for Plex, Emby, and Jellyfin.
What are the network speeds?
With its dual 5GbE LAN ports and support for link aggregation, it can achieve sequential read/write speeds of up to 1020 MB/s.
Can I use the M.2 slots for main storage?
Yes, the three M.2 slots can be configured for SSD cache to accelerate HDD performance or as independent storage pools for faster data access.
Buying Guide
When buying a NAS, you're essentially getting a mini-computer designed for network storage. Don't just look at the number of drive bays; consider the CPU, RAM, and network ports. These components dictate how fast you can access your data, how many users can connect simultaneously, and if it can handle tasks like media streaming or running virtual machines. A more powerful CPU and more RAM mean smoother performance for demanding applications, while faster network ports directly translate to quicker file transfers.
Intel N150 Quad-Core CPU & 16GB DDR5 RAM
This is the brain and short-term memory of your NAS. A quad-core N150 with 16GB DDR5 is like having a capable desktop computer inside your NAS. It means it can handle multiple tasks at once, like streaming 4K video to several devices, running Docker containers, or managing large file transfers without slowing down.
Dual 5GbE LAN Ports
These are your data highways. Standard home networks often use 1GbE, which is like a single-lane road. Dual 5GbE ports, especially with link aggregation, create a multi-lane highway, allowing data to move up to five times faster than a single 1GbE connection. This is crucial for large file transfers, like editing video directly from the NAS.
3x M.2 Slots
Think of these as dedicated express lanes for your most important data. M.2 SSDs are much faster than traditional hard drives. You can use these slots to create a super-fast cache for frequently accessed files, making your NAS feel much snappier, or even for dedicated high-speed storage pools for specific applications.
144TB Max Capacity
This is how much digital stuff you can store. 144TB is a massive amount of space, equivalent to tens of thousands of hours of 4K video or millions of photos. It means you won't run out of room anytime soon, even if you're archiving years of data or running a small business.
Alternatives
If this NAS doesn't fit, look for models with 10GbE networking for even faster transfers, or consider units with more powerful CPUs (like Intel Core i3/i5) if you plan on heavy virtualization or running many demanding services simultaneously.
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