Re: USB 2.0 Transfer Issues with Vista & External Drive
I use an AcomData kit. It comes with a PCI card, External drive
(WDC 250-Gigabyte) and a cable. Because it's served from the
PCI bus it's speed gets caped at around 65 Megabytes a second.
I bought my kit from CompUSA, but they've closed or are closing
a large number of their stores.
Here's a link to the manufacturer's product page:
http://www.acomdata.com/hdp/fs.html
There are all kinds of other solutions, Tiger Direct has an Outlet
store where I live and they sell SATA-II expansion cards and
enclosures that you can build your own kit. ( Picking the drive to
use with it.) Many new motherboards come with a eSATA socket
on the pack panel to use an external drive.
"Fyvush Finkel" <fyvush@imdbhost.com> wrote in message
news:ujrNcZqvHHA.3524@TK2MSFTNGP06.phx.gbl...
> Thanks for the clarification. That makes more sense and I now I think
> I'll return it for an eSATA drive. One question. How would I connect the
> eSATA drive to the system?
>
>
> "R. McCarty" <PcEngWork-NoSpam_@mindspring.com> wrote in message
> news:edmLQPqvHHA.784@TK2MSFTNGP05.phx.gbl...
>> USB external drives will likely never exceed a sustained throughput
>> beyond 30.0 Megabytes per second. Note the 480 Mega is rated
>> in "Bits" not Bytes. For true external performance similar to internal
>> drives you'd need to use an External or eSATA drive. External USB
>> drives are convenient, but not known for their speed.
>>
>> "Fyvush Finkel" <fyvush@imdbhost.com> wrote in message
>> news:u0J3bGqvHHA.4528@TK2MSFTNGP03.phx.gbl...
>>> The motheboard has an 800MHz FSB. The SATA drives have at least a
>>> 100MBs transfer rate and the bus is extremly fast. I can't believe they
>>> are restricted to 29MBs when data from the SATA drives transfer across
>>> the same bus at many times the speed of the USB device. What else could
>>> be the problem?
>>>
>>>
>>> "PaulB" <PaulB@discussions.microsoft.com> wrote in message
>>> news:AD28060C-8B38-4BB0-ACF1-AA7B2B7BBDC9@microsoft.com...
>>>> Remember that transfer rates depend on the entire path of transfer.
>>>> Disk
>>>> access time, bus speeds etc. The intent of USB 2.0 is not to be the
>>>> limiting
>>>> factor.
>>>> --
>>>> Paul
>>>>
>>>>
>>>> "Fyvush Finkel" wrote:
>>>>
>>>>> I just purchased a Seagate FreeAgent external hard drive with USB 2.0.
>>>>> When
>>>>> I hook it up to my system (nvidia 680sli motherboard) the transfer
>>>>> speed is
>>>>> only 28.5-29 MBs. The documentation that comes with the external
>>>>> drive says
>>>>> that USB 2.0 can transfer at a rate of 400 MBs.
>>>>>
>>>>> Why the extreme discrepency between what is written on the docs and
>>>>> actual
>>>>> use with Vista Ultimate? My machine has 4GB of RAM, a 2.4 GHz dual
>>>>> core
>>>>> processor, so it is fast enuf. Anyone have an explanation?
>>>>>
>>>>> Thanks
>>>>>
>>>>>
>>>>>
>>>
>>
>>
>