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Save Up To $120 on External Hard Drives View Today's Best Deals
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Today's Best External Hard Drive Deals

$19 Price Drop
Weight
170g
USB Powered
Yes
Hard Drive Capacity
3TB
$9 Price Drop
Weight
170g
USB Powered
Yes
Hard Drive Capacity
1TB
$16 Price Drop
Weight
230g
USB Powered
Yes
Hard Drive Capacity
2TB
$800 Price Drop
Weight
11.4kg
USB Powered
No
Hard Drive Capacity
64TB
$19 Price Drop
Weight
600g
USB Powered
Yes
Hard Drive Capacity
2TB
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Frequently Asked Questions (FAQs)

QHow is the capacity of hard drives measures?
AModern external hard drives are measured in gigabytes (Gb), which equates to approximately 1,000 megabytes (Mb). A single mp3 takes up about 3-4Mb, while a single picture takes 1-2Mb. Larger capacity drives are measured in terrbytes (Tb), where 1Tb = 1,000Gb.
QWhat security is available for external hard drives?
AMost hard drives lack any serious security options - however some have password protection to only allow authorised access. This can be a software password, or an actual physical keypad on the drive itself. Heavier degrees of security are available - including biometric fingerprint scanners, which will only unlock the data to someone with authorised fingerprints.
QHow are external hard drives powered?
AMost external hard drives are powered via USB, meaning they can be plugged directly into the computer and used from there. However some very large/powerful drives need too much power for USB alone, and will also require am external power supply to function properly.

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