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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External HDD 3.5" - 2TB - 8TB

These larger drives use desktop-style 3.5in hard disks, which means they're better suited to sitting on a desk than being carried around in a bag, but their larger profile does mean big capacities: some of these products serve up a whopping 4TB of space. Their 7,200rpm spindle speeds mean file transfer are quicker than 2.5in drives, too.

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Enclosure (2.5" - 5.25") - ThunderBolt

External hard disks 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 come in different types of case – some are designed to be tiny, and others are ruggedized to stand up to dust, water and even fire.

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NAS - 3 to 4 HDD Bays (Ex HDD)

These medium-size NAS units hold three or four HDDs. Entry-level units are great for home users and prosumers with lots of HD media and other data that needs centralising, while more advanced units come with faster processors and more advanced security and RAID features for business and surveillance users. 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 - 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 - Accessories

NAS (network attached storage) device accessories, including drive bay adaptors, rack and rail mounting kits, power supplies and warranty extension programs. They tend to be suitable only for specific NAS units, so check yours is compatible.

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

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