External Hard disk enclosure

Discussion in 'Hardware Components and Aftermarket Upgrades' started by mtarm1, Oct 21, 2009.

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  1. mtarm1

    mtarm1 Notebook Evangelist

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    ok so i just brought a new HDD drive for my laptop to put win7 on and i am going to use the remaining storage of the old HDD as a backup drive(im leaving the vista and recovery partitions in place for safe keeping etc).

    so i picked up this 2.5" enclosure to put the old hard drive in. it is a usb/eSATA one. it has three ports(dc, esata, mini usb) it also came with three cables... 1 dc to USB (for the power), 1 eSATA to eSATA and one mini usb to USB(x2)

    now my question is why is there two usbs on the cord? does the other act as power instead of the dc to usb one? or is it to make data transfer quicker???

    can anyone help me on this? and if i forget to plug one in or plug to many in will i stuff up something?
     
  2. ZaZ

    ZaZ Super Model Super Moderator

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    I believe and it's been a while since I looked at this, the second plug is for cases when the first plug does not supply enough power. You can use the second to draw additional power. I'd say it's pretty unlikely that a notebook bought recently would need more than one plug. It's probably for older machines. My own WD external came with a single cord.
     
  3. mtarm1

    mtarm1 Notebook Evangelist

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    no i dont think i explained it properly...

    cord # 1 (know what this does)

    esata ---------cord-----------esata

    cord # 2 (know what this does)

    dc----------------------------USB

    cord # 3 (why is there two???)

    USB---------------------mini USB
    <
    . \
    . >-----USB

    ^^ does this make sense?
     
  4. moral hazard

    moral hazard Notebook Nobel Laureate

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    yep I get it.

    Did it come with a manual?

    Could you download the pdf version of the manual online?

    It's probably just there to offer you more options.
     
  5. neilnat

    neilnat Notebook Evangelist

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    You should not need the USB--->DC cord if you are connecting through USB. Instead, you just use the mini-USB. One of the USB heads is power only, the other is power/data. You may only need one.
     
  6. mtarm1

    mtarm1 Notebook Evangelist

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    ok i think i got it...

    two configs...

    if im using eSATA

    i use the esata cable for data and the dc cable for power...

    if im using USB

    i use the double headed USB with both pluged in...

    the only thing is the double cable is a little short so would it work if i used another single USB cable that is longer for the data and then the dc cord for the power?

    also seing as there are two methods of connecting it and two power options is it possible to connect it to two computers at once???

    cheers
    mtarm1
     
  7. Judicator

    Judicator Judged and found wanting.

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    You might be able to connect it physically to 2 computers at once, but without some kind of access controller on the external HDD, only one will be able to access it at any one time, which means you'd have to be forever removing it from the device manager on one to be able to use it on the other.
     
  8. crazycanuk

    crazycanuk Notebook Virtuoso

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    if using e-sata use the dc adaptor as e-sata does not supply power

    the twin usb cable is for machines that dont have enough power output in a single USB port to run the drive, so a second end is added as a power tap to supply sufficient power to the HDD
     
  9. mtarm1

    mtarm1 Notebook Evangelist

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    yer i thought that but why couldnt i use the dc that is used with the esata as the second power thing???

    seems pretty stupid to me
     
  10. deeastman

    deeastman Notebook Deity

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    Exactly, most of the time the second USB connector is not required.

    You should be able to use a different (longer) USB to mini USB cable without any dc power cord. i.e. only the single USB cord only. I have several from cameras that work just fine. Most external USB enclosures do not provide a dual USB to mini USB cord, only single to single.
     
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