TerraMaster F2-423 NAS Overview – With Intel Celeron N5105, 2.5 GbE, DDR4, & 2x M.2 NVMe | Tech Lance

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TerraMaster F2-423 NAS Overview


The TerraMaster F2-423 is a superb NAS and a much-needed improve from the earlier fashions I’ve reviewed. This NAS, and the TerraMaster typically, presents glorious worth for cash in case your precedence is the very best {hardware} to your cash.


  • Implausible {hardware} spec for the value
  • Glorious general efficiency
  • TOS has sufficient options for many customers


  • TOS 4.2 put in by default
  • TOS is just not as characteristic wealthy or refined as Synology

I beforehand reviewed the TerraMaster F4-421 and F4-422 10GbE 4-bay NAS enclosures and was impressed by the well-specified but inexpensive nature of the TerraMaster home equipment.

Whereas they have been excellent, they each used the previous Intel Celeron J3455. They have been additionally restricted to DDR3 and lacked NVMe slots.

The brand new TerraMaster F2-423 and its four-bay sibling, the F4-423, implement far more trendy {hardware}.

Each circumstances use the Celeron N5105, which is a tenthe Intel Gen chip that was launched in 2021 and had considerably larger efficiency than the Celeron J4125 and J4025 present in equally priced Synology fashions.

For RAM, it has two module slots with 4 GB put in in a single (as an alternative of a soldered slot). This lets you develop the storage to 32GB, it makes use of DDR4 SODIMM which is sort of inexpensive and most manufacturers ought to work.



You might discover the HDMI port on this unit. For this assessment, I did not hassle utilizing it as a result of it would not provide many options. You aren’t getting entry to the TOS desktop GUI, moderately it is the underlying Linux debugger. Nonetheless, this would possibly turn out to be useful when you’ve got any points with the NAS.

Putting in RAM and NVMe drives

The TerraMaster F2-423 has two M.2 slots that may assist NVMe drives. It additionally makes use of DDR4 SODIMM slots with 4GB pre-installed.

It is comparatively simple to improve this case, although changing the RAM requires you to disassemble it and take away the primary motherboard.

Opening the cupboard is straightforward with 4 screws on the rear. You’ll then must take away the fan, which can then will let you slide the physique off.

This may reveal the 2 M.2 slots and you’ll simply add your drives.

One of many RAM slots seems to be simply accessible, however its proximity to the entrance panel prevented me from becoming a module. You might be able to pry it up, however I did not need to harm something.

Subsequently, you have to to take away the motherboard from the chassis to improve. There are 4 screws that safe it to the chassis. The again panel of the drive can also be slotted into the motherboard, this comes out pretty simply, however you will need to line it up correctly whenever you reconnect the whole lot.

For upgrades, I reused spare elements I had laying round.

Initially I attempted to make use of Kingston HyperX Impression 64GB DDR4-2400 SODIMM. Sadly the TerraMaster solely helps 32 GB and I could not get it besides with this reminiscence (even when utilizing a module).

I then managed to get two mismatched RAM modules working, one was the Goodram IRDM 3200Mhz DDR4 SODIMM module, and one was a generic 8GB machine I discovered laying round.

TOS 5 not put in by default

Previous TOS 4.2 which is put in by default;

TOS 5 has been obtainable for a number of months, however for some purpose, it comes with TOS 4.2.39. You additionally can not replace it robotically via the management panel.

To make issues extra annoying, TOS 5.0 has vital underlying modifications and subsequently requires you to do a manufacturing unit replace and full reinstall.

I solely seen this after doing the preliminary set up. It appears foolish to assessment a brand new NAS working an previous OS. So I went via the irritating technique of reinstalling the whole lot.

At a minimal, the TOS initialization course of ought to both warn you about this or will let you choose your personal OS model.

One saving grace is {that a} full reinstall didn’t destroy the information on my exhausting drives. Nonetheless, it eliminated all of the apps.


When you select to make use of TOS 5, you have to to do some guide configuration. It’s a moderately easy course of.

You will have to obtain the set up bundle, and here’s a devoted set up information web page the place yow will discover the obtain.

Once you first begin up the NAS, you will need to choose customized and anticipate it to verify your drives (which might take a very long time).

Choose the drives you need to use and manually choose the bundle to put in. As soon as put in, you have to to assign your admin person after which format the RAID.

NVMe SSD cache drive

To get probably the most out of this NAS, it’s handy to arrange a cache drive.

You might have been capable of configure an SSD cache inside TOS with older fashions and TOS 4.2. Nonetheless, now you do not have to waste one of many major drive bays with an SSD and use a lot quicker NVMe drives as an alternative.

With TOS 4.2, within the management panel, you’ll be able to go to the quantity and storage supervisor, choose your quantity, and click on edit. You may then choose Allow SSD Cache and choose the drive you need to use. The NAS might want to reboot and for some purpose I needed to full this course of twice earlier than it acknowledged that the cache was getting used.

With the replace to TOS 5, there’s now a brand new Hyper Cache choice. This has a devoted part throughout the storage supervisor. With this, you may have extra management over how the cache works, akin to balanced, again or learn/write mode. You even have the choice to make use of RAID 1/0 on two NVMe drives.

Learn/write efficiency

I attempted balanced mode in RAID 0 with two NVMe drives after which learn/write mode with a single drive. The efficiency was as anticipated.

In balanced mode, the file switch begins in a short time however stops rapidly. In read-write mode, with all information written to NVMe, I used to be capable of preserve the utmost velocity of the two.5GbE connection.

Learn efficiency was understandably much less spectacular. In read-write mode, file switch speeds jumped between 100MB/s and 150MB/s, however it was nonetheless a bit quicker than I might count on when studying instantly from disk.

Obtainable apps

Once I reviewed the TerraMaster F4-421, there have been 88 functions obtainable for obtain. It appears that evidently a few of these will not be current in TOS 5. There at the moment are solely 55 apps obtainable to put in. A fast look and the headset and the lazy librarian appear to be lacking.

Nonetheless, they’ve prolonged performance to duplicate some options of Synology. This consists of new beta apps:

  • Photographs of Earth
  • TerraSync
  • Surveillance Supervisor

There’s additionally Nextcloud, which offers lots of the identical options that Synology has.

By comparability, Synology has 63 apps inside the primary part of packages they’ve developed after which one other 43 throughout the third social gathering part.

Docker / Portainer / NZBGet

I used to be glad to see Portainer underneath Beta apps. I do not assume this was within the TOS after I reviewed the older fashions, and it makes Docker container administration a bit simpler to make use of.

With Docker, you’ll be able to replicate a lot of the performance you will get on a Synology NAS.

I have never examined Docker extensively, however I went via the NZBGet set up course of and the whole lot labored because it ought to. Moreover, I used to be capable of hit obtain speeds of round 45MB/s, which is what I sometimes see with my Virgin Media connection and the Usenet servers I exploit. CPU utilization stayed low, I noticed it peak round 50% whereas checking a file I downloaded

Logging into Portainer and managing your NZBGet container is fast and simple.


Plex Server is without doubt one of the hottest functions to run on a NAS. It’s also one of the crucial demanding. At dwelling, most of my content material is direct play and so not a giant deal, but when it’s good to transcode issues can get messy.

The official Plex NAS compatibility listing doesn’t embrace this NAS but, however they do have fashions from QNAP which have Intel N5105.

For software program encoding you’ll be able to solely do SD and 720P HD with some 1080P HD. For hardware-accelerated transcoding, you are able to do the whole lot as much as 1080P with no drawback.

For H264 2160p you’ll be able to solely do SDR after which with HEVC the assist is about as H.264 output.

Whereas the listing is just not complete for all of the NAS choices available on the market, the N5105 appears to be the best choice on this listing for transcoding.

Once I tried this with TOS 4.2, Plex labored with out me making any modifications to something. With TOS 5, I wanted to assign the proper privileges earlier than Plex may learn the contents of my media folders.


NAS techniques are historically used for backup and it is one thing I believe works effectively throughout all manufacturers. TOS 5 has a devoted backup part that features:

  1. rsync
  2. File system snapshot
  3. Time Machine Backup
  4. TFM assist
  5. Centralized backup
  6. Snapshot
  7. usb copy
  8. Cloud Sync
  9. TerraSync Server: Works as a cloud drive server much like Google Drive or Synology Drive
  10. double backup

Vitality consumption

With rising power prices, I’ve develop into a bit extra aware of the working prices of all of the issues I verify. I’ve additionally been contemplating ditching my self-built Ubuntu server in favor of a NAS like this.

Terramaster states the ability provide is 40W so this could by no means exceed that and is considerably decrease than my 120W+ server. The 4-bay mannequin bumps the ability provide as much as 90W.

Utilizing the TP-Hyperlink Tapo P110, I monitored the ability consumption.

Beneath idle load/mild load with CPU utilization starting from 2% to twenty%, energy consumption remained under 24 W.

When writing to the drive, energy consumption diversified however by no means exceeded 31W.

When logging into Plex within the browser and taking part in a file that causes CPU utilization to exceed 90%, the ability consumption additionally stays under 31W.

Value and various choices

The TerraMaster F2-423 is priced at £340 on Amazon, and the 4-bay F4-423 is £440.

The previous TerraMaster F2-422 is similar worth. It has a 10GbE port however decrease specs in all places else.

Then there’s the four-bay F4-421, which is proscribed to gigabit. It is priced at £410, so that you would possibly as effectively spend an additional £30 on the far superior F4-423.

Synology would not actually have a two-bay mannequin to compete with the F2-423. However the four-bay Synology DS920+ prices £485. That is not an enormous leap in worth from the F4-423; nonetheless, the CPU is just not that highly effective, it solely helps 8 GB of RAM, and the Ethernet is barely gigabit.


The TerraMaster F2-423 is a superb NAS and a much-needed improve from earlier fashions I’ve reviewed, making the {hardware} extra aggressive towards Synology’s current releases.

I discovered it extremely annoying that this defaults to the previous TOS 4.2 as customary.

TerraMaster TOS 5 is a big enchancment over 4.2, which I used with my earlier revisions. Nonetheless, it’s nonetheless a great distance from Synology, and that’s the reason Synology can get a premium worth on its {hardware}.

Relying in your particular necessities, the options of the software program must be appropriate for many customers, however it isn’t as feature-rich or simple to make use of as Synology.

As all the time, TerraMaster presents glorious worth for cash in case your precedence is the very best {hardware} to your cash.

Final up to date on 2022-11-05 / Affiliate Hyperlinks / Amazon Product Promoting API Photographs

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TerraMaster F2-423 NAS Review – With Intel Celeron N5105, 2.5 GbE, DDR4, & 2x M.2 NVMe