-=PCTechTalk=- Re: Connecting external hard drives
- From: RMB White <roguer@xxxxxxxxxx>
- To: pctechtalk@xxxxxxxxxxxxx
- Date: Mon, 07 Jul 2008 08:41:10 +1200
Don !
Very many thanks for your prompt and helpful reply.
I have no knowledge of what a "powered" hub is, but shall go out and
look for one.
Are there any criteria, specifications or methods of use I should look
out for please??
Roger W
On 7/07/2008 12:11 a.m., Don101 wrote:
> Roger,
> Any power supply can only supply so much power. In a laptop that amount is
> as small as possible to minimize heat. That means there is not a lot of
> extra power for extra devices.
>
> If you have more devices plugged in than USB ports built in then it is
> likely a powered hub would better meet your needs. This is especially true
> for some Maxtor (and maybe other brands) 2.5 inch hard drives because they
> require two USB ports and draw power from both. On my Maxtor 250GB they are
> labeled "Power" and "Power + Data".
>
> Power demands from USB devices can also be a problem with desktop computers.
> Especially older ones with a smaller power supply. I encourage my customers
> to use a powered hub for anything that draws more power than a keyboard,
> mouse or card reader and to always use a powered one when it will occupy the
> last available port on the computer/laptop.
>
> Don
>
>
> ----- Original Message -----
> From: "R. M. B. White" <roguer@xxxxxxxxxx>
> To: "pc techtalk" <pctechtalk@xxxxxxxxxxxxx>
> Sent: Sunday, July 06, 2008 5:35 AM
> Subject: -=PCTechTalk=- Connecting external hard drives
>
>
>
>> Now that my new 250G Seagate is getting full of copies of copies of
>> copies, I have just got a 500G Maxtor as well.
>>
>> However they each (as well as my Brother MFC 260C Multi-function
>> printer/fax/copier) want to be connected to the BACK of my laptop, and
>> they regard connection with the FRONT or via a USB hub as dangerous.
>>
>> I have a fairly standard hub but understand from something I have read,
>> that it may need to be a POWERED hub to overcome this danger.
>>
>> Would appreciate any helpful coments please (or even derogatory)
>>
>> Roger W.
>>
>>
>
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