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  1. #1

    Default DSE 2.5 HDD Enclosure

    I reccomend this product to everyone it is really great! Comes with carry case and USB cable.

  2. #2
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    Default Re: DSE 2.5 HDD Enclosure

    Aren't most hdd's 3.5?

    In which case they wouldn't fit in that enclosure?

  3. #3

    Default Re: DSE 2.5 HDD Enclosure

    2.5 inch HDD is a laptop HDD.

  4. #4
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    Default Re: DSE 2.5 HDD Enclosure

    Thats what I thought.

    I would say most people would have 3.5 / desktops not laptops.

  5. #5
    Senior Member godfather's Avatar
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    Default Re: DSE 2.5 HDD Enclosure

    You should only but 2.5" USB cases that have provision for an external power pack, have encountered too many where the +5v power needs of the drive just overload the two USB ports on the PC.

  6. #6
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    Default Re: DSE 2.5 HDD Enclosure

    There are good reasons fro the 2.5" cases: size and power supply.

    Most (all?) laptop 2.5" drives need only a 5V supply. Almost all 3.5" ones need 12V as well, which USB doesn't supply.

    Whether all USB ports can supply the rated 500 mA, and whether all 2.5" drives require less than 500 mA is an exercise left for the student.

  7. #7
    They call me David... The_End_Of_Reality's Avatar
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    Default Re: DSE 2.5 HDD Enclosure

    Quote Originally Posted by Graham L View Post
    There are good reasons fro the 2.5" cases: size and power supply.

    Most (all?) laptop 2.5" drives need only a 5V supply. Almost all 3.5" ones need 12V as well, which USB doesn't supply.

    Whether all USB ports can supply the rated 500 mA, and whether all 2.5" drives require less than 500 mA is an exercise left for the student.
    Exactly, physical size though

    AFAIK that is correct

    I have a 2.5" 40GB portable drive here and that is rated at 5VDC 1.2A... I know that a lot of PCs error when I plug it in saying the USB port is drawing too much current, and often the drive dies because the power supply from the USB is too little.

    Reasons why 3.5" portable drives are better:

    1. More data capacity possibility

    2. External power source means there is no stress on the USB ports

    3. Transfer of large amounts of data is faster

    Just my
    Quote Originally Posted by Me
    It's a harddrive you idiot!

  8. #8
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    Default Re: DSE 2.5 HDD Enclosure

    Just wondering how there are external usb and firewire. Is it possible for a drive to be connected externally .. that runs on the motherboard (onboard). Like, connecting a wire from one of the onboard pins to a port behind the computer and then plug that to the drive by wire. Have the drive powered up by its own PSU, should be quicker than USB2 or Firewire? If at all possible.

    Maybe it can be daisy chained like P-ATA and SATA ....

  9. #9
    They call me David... The_End_Of_Reality's Avatar
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    Default Re: DSE 2.5 HDD Enclosure

    Quote Originally Posted by Nomad View Post
    Just wondering how there are external usb and firewire. Is it possible for a drive to be connected externally .. that runs on the motherboard (onboard). Like, connecting a wire from one of the onboard pins to a port behind the computer and then plug that to the drive by wire. Have the drive powered up by its own PSU, should be quicker than USB2 or Firewire? If at all possible.

    Maybe it can be daisy chained like P-ATA and SATA ....
    Yes, e-SATA (external SATA) runs at the speed that the HDD and mobo can handle eg 3Gbps HDD and a 3Gbps mobo, it will run at these speeds

    EDIT: also has its own external PSU, also be best to use a case for cooling...
    Last edited by The_End_Of_Reality; 19-01-2007 at 04:05 PM.
    Quote Originally Posted by Me
    It's a harddrive you idiot!

  10. #10
    Senior Member Pete O'Neil's Avatar
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    Default Re: DSE 2.5 HDD Enclosure

    Its possible to get I/O brackets that provide a 4 pin molex power connector and standard SATA port externally on the back on the case. Its not a special standard or anything merely shifts the port from the motherboard to the back of the case. I think a few Gigabyte motherboards use to come with these as part of their bundle.

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