How to Convert a Hard Drive to an External USB Drive

An external case and a hard drive is a great way to save money on storage

Converting a hard drive to a USB drive is a great way to get more usage out of an extra hard drive. It is also frequently cheaper to construct a backup drive from an external case and an old internal hard drive, than it is to buy an external drive. Putting an external USB drive together is fairly simple operation.

Things You'll Need

• A 2.5- or 3.5-inch hard drive
• An external hard-drive case
• Computer with USB ports
• Phillips screwdriver

Instructions

1. 

   An unused laptop drive is perfect for some extra storage

   Identify what type of hard-drive you have, Serial ATA (SATA) or Parallel ATA (PATA is the sometimes called IDE or ATA). You will also need to identify what size drive it is. Most desktops use a 3.5-inch drive, while most laptops use a thinner, 2.5-inch drive.

2. Once you have assessed the size and interface of your internal hard drive, purchase a case that can accommodate your needs. External cases are inexpensive and available at most of the electronics and computer big-box stores.

3. Open the case with your Phillips screwdriver. Every case is different, so follow the manufactures' instructions. Generally two to four screws hold the back panel in place. The bottom panel slides out to reveal the electronics and four screw-mounts on which to attach your drive. Attach the hard drive to the internal Interface cable (SATA or IDE).

4. Attach the drive to the internal power supply.

   Mount the drive securely on the screw posts.

   Slide the bottom tray back inside the drive enclosure. Reattach the back panel.

5. 

   Attach the external power cord. Connect the USB cable, to the back pane of the drivel and to your computer's USB port.

6. Boot up your computer and turn the drive on. You should be able to see the drive in Explorer, under "My Computer".

References

• ComputerShopper.com: Build Your Own External Hard Drive
• PC Mag.com: Build an External Hard Drive