How to Measure for an External HD Enclosure
External hard drives can be made using internal hard drives you already possess with the purchase of an external hard drive enclosure, allowing you to have an external hard drive for a fraction of the expense of a new one. Hard drives come in different sizes, thicknesses and interfaces, so you must measure and inspect your hard drive to purchase the ideal enclosure.
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Instructions
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1
Measure the length of the internal hard drive from end to end with your ruler. Write down the dimensions.
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2
Measure the width of the hard drive and write down these dimensions as well.
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3
Measure the thickness of the hard drive. Add this measurement to your notes.
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4
Inspect your hard drive and write down what interface it uses. For example, EIDE/PATA or SATA.
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5
Inspect your computer to decide which interface you wish to use to connect. Examples common in 2010 are USB, Firewire and eSATA.
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Verify that the hard drive enclosure you purchase is the right size and has the correct interface for your particular hard drive and computer using the measurements and information collected above.
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Follow the manufacturer's instructions to insert your hard drive into the enclosure, as instructions for enclosures will vary.
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8
Connect the new external hard drive to your computer.
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Tips & Warnings
There are two common sizes of external hard drive enclosures: 2.5-inch enclosures designed for laptop hard drives, and 3.5-inch enclosures designed for desktop hard drives. This size refers to the width of the hard disk.
The thickness of the hard disks may vary, so make sure your hard disk is not thicker than the enclosure that you purchase. This is especially true for laptop hard drive enclosures. Some larger capacity laptop hard drives are thicker than the average laptop hard drive.
It is acceptable to have an enclosure thicker than your hard drive. This will allow for more air circulation.
Enclosures with built-in fans will enable your hard drive to stay cooler during heavy use.
Static can damage your hard disk. Use standard anti-static procedures when handling the drive.
Do not force the connections on your hard drive. Cables are generally keyed to allow insertion only one way.
Ensure that your hard drive is well-secured within the enclosure to prevent loose connections and possible damage to your hard drive during transport.
