Hard Drives - External

External hard drives are ideal for backup or portable file storage, and these drives come in a large range of categories: some use desktop-sized 3.5in hard disks, other use smaller 2.5in drives, and faster products use SSDs. Most drives use USB 3, Thunderbolt or eSATA connections, and these drives can also come in different types of case – some are designed to be tiny, and others are ruggedised to stand up to dust, water and even fire.

External HDD 2.5" - 250GB - 4TB

These external drives use mobile 2.5in hard disks, which mean they're a lot more portable than desktop drives. They've got capacities that range from 250GB to 4TB, most use super-fast USB 3.0 and Thunderbolt connections, and many include backup applications and cloud storage deals for added security.

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Enclosure (1.8"-2.5") - SATA - USB 3.0

Combining Super Speed USB 3.0 with a SATA hard drive interface results in an external hard drive with high data transfer rates. A 1.8" to 2.5" internal SATA hard drive fits into these enclosures. Power to these enclosures are either via the USB 3.0 connection or a separate power lead, check specifications of the individual product to confirm.
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NAS - 5+ HDD Bays (Ex HDD)

These NAS units are the largest around, offering five HDD bays at a minimum and ten or more in many cases. They are typically geared towards advanced users who need plenty of storage space, and many are supplied in rackmount cases for use in industry and large-scale businesses. These units are not sold with hard disks so you'll need to add your own – it's best to get matching models and capacities, especially if you plan on using RAID.

If need more info to help you choose the right NAS, or you can't see the exact specification you'd like custom built NAS please click here.

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NAS - Complete (Inc HDD)

These NAS units are sold with hard disks bundled, saving you the trouble of buying them yourself. They come in a range of sizes and capacities, from single bay 2TB units suitable for modest personal users all the way to large, multi-bay units with 16TB, 24TB or even 32TB of storage on tap.

Some of these NAS boxes do not come pre-configured, giving you the chance to set them up as you see fit, including what RAID level you want to use, if any.

The NAS solutions with the purple 'SYSTEM' flag are built by our award-winning 3XS Systems engineers and come pre-configured with your choice of RAID, so all you have to do is connect them to your network.

If need more info to help you choose the right NAS, or you can't see the exact specification you'd like custom built NAS please click here.

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Tekspek An in-depth guide into tech: DAS & NAS