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Computers are becoming a necessity nowadays. All of the content of the computer such as files, musics, applications, videos and games will be stored in the internal hard drive of the computer.

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However, you never know when your computer will break down and will not start anymore and all of the content will not be recovered. Good thing there are portable hard drives, this serves as a back up where you can store all the content of your computer. Portable hard drives are now affordable and easy to use. You can now take all of your files anywhere you go because of portable hard drives. Portable hard drives is best for people that always go in different places. There are different kinds of portable hard drives and they are all a bit affordable. The minimum price of a portable hard disk is about $80.00. 

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Below are the factors that you need to consider when purchasing a portable hard disk:

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First thing that you need to consider is the file size of the portable hard drive. Portable hard drives comes in different sizes which are measured in terms of gigabytes and terabytes. The size of hard drives can range from 20 gigabytes up to 3 terabyte. If you are planning to store small files, such as word documents, emails and music then you should go purchase a hard drive with a smaller size. However, if you plan to back up all the contents of your computer then you should purchase a 3 terabyte portable hard drive. For more info, go online and type Best Thunderbolt external hard drive 2017 on any online search engine. 

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The next thing that you need to consider is the speed. Speed of transferring files to the Thunderbolt external hard drive will be determined by the cache size. The larger the cache size the faster you can transfer files to your hard drive. However, this means that the larger the cache size the higher the price. 

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The third thing that you need to take into consideration is the type of connection. There are actually three kinds of connection, the firewire, USB and the eSATA. A lot of computers uses the USB connection since they have USB ports. MAC users, usually use the firewire connection since MAC computers has an integrated firewire support. Firewire connection can copy files to the USB. If you want to quickly transfer files then you should use an eSATA. The eSATA is best for files with a large size. 

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Portable hard drives is really make things easier. If you store a lot of files in your computer then it can slow down, that is why you should have a back up.

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To check if your hard drive is in proper working condition, head over to http://www.ehow.com/how_6890830_test-external-hard-drive.html for info.