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This 120TB capacity 4-bay DAS solution is at a record-low price of $171 on Amazon

A good pick for massive direct storage
Kevin Pocock
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This 120TB capacity 4-bay DAS solution is at a record-low price of $171 on Amazon
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Large local storage is a necessity if you’re a creative professional or you deal with lots of data that cannot be stored on a single PC. And the TerraMaster D4-320 is a DAS (not NAS) that can handle plenty of data. It supports up to a massive 120TB of data, is plug-and-play, and it’s just been discounted to its lowest-ever price on Amazon. The $190 DAS solution is now $171, a decent 10% saving, and it’s perhaps exactly what you need if network-attached storage isn’t for you.

Prices and savings subject to change. Click through to get the current deal prices.

Why we’d pick the TerraMaster D4-320 4-bay enclosure

A 120TB capacity DAS

NAS devices are fine, but if you only need a direct-attached storage (DAS) solution, why overcomplicate things? The D4-320 is a 4-drive solution supporting a huge 120TB of data storage, with a simple-access ethos: big local storage where you need it. It’s a huge amount of space and can support creative and heavy-workload professionals who need to offload or back up at scale.

Mixed drive use and hot-swap support

With its big 120TB capacity, this diskless enclosure supports up to 4x 30TB HDDs. Alternatively, the D4-320 also supports 3.5-inch SATA hard drives, 2.5-inch SATA hard drives, and 2.5-inch SATA SSDs. Plus, the device is hot-swappable, so you don’t need to power down the enclosure to remove or change a drive.

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Prices correct as of October 9th, 2026.

Speedy data access

The TerraMaster D4-320 connects via the USB 3.2 Gen 2 protocol, supporting speeds up to 10Gbps for data transfer. TerraMaster states that when equipped with four (8TB) drives, the actual read/write speed can reach up to 1,016 MB/s. So, you won’t lack for speedy local access to vital data and files.

What to consider before you buy

As a DAS device, the main consideration with the TerraMaster D4-320 is that it isn’t a NAS. That means it isn’t available for access across your network or from outside. That means that if you do need a network-attached storage solution, you will need to look elsewhere. Crucially, the TerraMaster D4-320 does not support any RAID function. If that specific feature is key for your data, spending more to secure a device that does is a sensible choice. Finally, it is diskless, so no storage drives come with it.

Prices and savings subject to change. Click through to get the current deal prices.

About the Author

Kevin Pocock

Kevin has a broad interest and enthusiasm for consumer electronics, PCs, and all things consumer tech. And more than 17 years experience in tech journalism.