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Thread: Some questions about external hard drives

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    Default Some questions about external hard drives

    I am thinking of buying an external hard drive for backing up data. There are two options available: 3.5 inch external hard drive with power supply or 2.5 inch portable hard drive without power supply.
    http://www.amazon.com/Western-Digita...+portable+2+tb
    http://www.amazon.com/Western-Digita...ook+Essentials

    I was wondering which one will be better. I have heard that the 2.5 inch ones last longer as they are designed for laptops but are slower compared to the 3.5 inch ones. Do the 2.5 inch ones really last longer ? If 2.5 inch ones are really slower than the 3.5 inch ones how slow are they compared to the 3.5 inch ones?
    Last edited by asif105878; July 31st, 2012 at 09:32.

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    Please do not tag me.
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    my brother has the second one ''my book essential 2.0 TB'' but my opinions both of them are good,after all they are made form WD. both of them will last if u use properly..but the second ''book'' one has 1 prob ''the power'' bad-sector felaite na chaile everybody should use ups!!! jeivabe current jay
    You are that,what you are in BLACK

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    Quote Originally Posted by CvP View Post
    Please do not tag me.
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    Default

    They're the same, the ones with ext power tend to be larger in terms of data capacity (and hence need more power to spin the platters)

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    all are good. most of them use usb 2 interface. so no matter what you use, you wont get above 35/45MBps speed. if usb 3 interface used, then higher speed is possible. otherwise 3.5" and 2.5" both spins at 5400 rpm. if portability is issue then buy the smaller ones. if size matters then buy bigger ones.

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