Terramaster F5-422 10GBaseT NAS from the front, with 5 bays visible

TerraMaster have offered NAS products with 10GBaseT 10Gbps ethernet support for a while now. We covered the launch of the 5-bay F5-422, but haven’t talked about the overall range. TerraMaster are one of the few NAS options with simpler 10GBaseT – regular 10Gbit ethernet – rather than fibre optic networking. In this article we’ll be covering the models, features and specs for the “422 series”, from the 2-bay F2-422 up to the 8-bay F8-422. Though the products haven’t changed, TerraMaster recently released version 4.2 of their TOS operating system, with a variety of improvements.

Though TerraMaster are far from the only brand offering 10Gbps connectivity, the lineup is well positioned on paper. Asustor offer cheaper options, but with slower Marvell ARM-based processors. Synology, meanwhile, have offerings competitive on specs but reliant on fibre-optic. Most consumers and small businesses won’t want to set up a fibre network. TerraMaster’s solution not only supports standard cables but is even backwards compatible with 5Gbps and 2.5Gbps. 2.5GBaseT 2.5Gbps ethernet in particular is getting very common – MSI notably equipped their entire Z490 lineup with it – and can work with old cat5e cabling. With this in mind, TerraMaster’s “422 series” have the potential to provide both an immediate performance boost to 2.5Gbps, and an upgrade path for full 10Gbps in the future.

Meet the TerraMaster “422” 10GBaseT NAS Series


TerraMaster’s pitch for the 422 series is for small and medium businesses. The software, common across the range, is a big part of the offer. A broad variety of protocols and platforms are supported, with extensive options for backup software. In addition, TerraMaster’s NAS products support “private cloud” setups.

It’s sometimes said in computer circles that “the cloud” – as in “cloud storage” – is a myth.  There is no cloud, the saying goes, it’s just someone else’s computer. This is obviously a potential security and privacy concern. However, cloud services can offer extra convenience. The “private cloud” setups supported by the TerraMaster 422 series, including the first-party TNAS.online, look to offer the convenience of “the cloud” while keeping the user in control. This is a cloud that’s on your computer, rather than someone else’s.

If you do like the cloud, however, TerraMaster also offer the ability to sync to a wide variety of different cloud storage services. An important part of any rock-solid backup strategy is offsite backups, syncing to the cloud achieves that.

TerraMaster also mention support for various torrent clients. To quote their site, this allows for “rapid and convenient movie downloading”. We’re not sure what they’re referring to there, but torrents are a good way to manage large data transfers on slow and/or unreliable connections. Speaking of movies though, Emby and Plex multimedia servers are supported with real-time transcoding up to 4K 30fps.

For business concerns, TerraMaster offer a large variety of applications including Virtual Machines, VPN Servers, Proxy Servers, DNS Servers, AD Domains, Web Servers, Multimedia Server, and more. Finally, TerraMaster’s TNAS Mobile app – available on both android and iOS – offers management and browsing from a phone.


Every model features a 1.5GHz quad core Celeron processor, which we can infer is an Intel Celeron J3455 – a 10W, 14nm Atom successor. For a NAS, that’s respectable grunt on paper. Networking is also consistent across the range, with three ethernet ports – two 1Gbps (supporting link aggregation) and one 10Gbps. Finally, each model includes two USB 3.0 ports.

Where the models differ is primarily in the number of drive bays. The F2-422 features two bays, the F4-422 features four, the F5-422 features five and finally the F8-422 features a full eight bays.

TerraMaster “422” 10GBaseT NAS Series Full Specs

F2-422 F4-422 F5-422 F8-422
Number of Bays 2 4 5 8
RAID Options 0/1/JBOD 0/1/5/6/10/JBOD
USB 2x USB 3.0
Networking 2x 1000/100Mbps, 1x 10/5/2.5Gbps/1000/100Mbps
CPU Intel Celeron J3455 (14nm Goldmont, quad core, 1.5-2.3GHz)
Memory 4GB (1x4GB) 8GB (2x4GB)
Max Memory 8GB (2x4GB)
File Systems BTRFS, EXT4
Disk Type 3.5” SATA HDD, 2.5” SATA HDD, 2.5” SATA SSD
File Systems (USB) EXT3, EXT4, NTFS, FAT32, HFS+
Operating System TerraMaster TOS
Supported Client OS Windows, Mac, Linux, iOS 8.2+, Android 6.0+
Supported Browsers Chrome 48+, Internet Explorer 9+, Firefox 30+, Safari 4.5+ (Edge “not recommended”)
Languages English, German, French, Spanish, Italian, Magyar, Chinese, Japanese, Korean
PSU Wattage 40W 90W 90W 300W
Load Power 25.6W 46.6W 46.6W 89.6W
UK Price £319.99 £439.99 £519.99 £1299.99
US Price $359.99 $499.99 $599.99 $1299.99

Although their website doesn’t make it clear, we’ve confirmed with TerraMaster that their 10GBaseT NAS units also support 5GBaseT 5Gbps and 2.5GBaseT 2.5Gbps ethernet standards.


The TerraMaster F2-422, F4-422, F5-422 and F8-422 are available now from Amazon and from TerraMaster’s own store.

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