HDD External Enclosures and capacity size limits??

Discussion in 'Computer Building' started by PhoenixOrion, Apr 4, 2008.

  1. PhoenixOrion

    PhoenixOrion Diamond Member

    May 4, 2004
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    I noticed that some HDD external enclosures states capacity limits such as 'up to 750GB.'

    I don't understand these limits when putting one 1TB SATA should work versus 750GB SATA especially if its interfacing with eSATA directly to the motherboard's SATA controller.
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  3. RadiclDreamer

    RadiclDreamer Diamond Member

    Aug 8, 2004
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    Im assuming there has to be a controller in the enclosure of some sort and that it has certain capacity limits. But this is just a guess
  4. Old Hippie

    Old Hippie Diamond Member

    Oct 8, 2005
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    I've always noticed that as the drive capacities increase, so do the capacities of the external enclosures.

    There's no difference in the hardware, it's just a marketing thing and some places are slow to update.

    I believe there were a few units, a long time ago, that were capacity limited. But, AFAIK, that hasn't been the case for many moons.

    I know, stupid....but that's what I've seen and read.
  5. RebateMonger

    RebateMonger Elite Member

    Dec 24, 2005
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    Every external SATA/eSATA enclosure that I've used has a DIRECT connection from the PC to the SATA hard drive. All the external housing does is provide power and a protected housing. There's no reason to expect any housing-related limitation on hard drive size.

    There are some Combo (USB/eSATA) housings and those have SATA-to-USB conversion circuitry. Depending on how those are wired (if there's a direct SATA-to-SATA channel, as well as a SATA-to-USB channel), then they MIGHT have hard drive size limitations.

    The original IDE-to-USB chips had definite hard drive size limitations (originally 127 GB or so).